MSRP: $25,000 for the pair Used, mint condition Uses IEC C19 power cables (Included) Including extra set of tubes. Ships in original box. Will ship individually (two separate packages) @ 90 lbs each, totaling 180 lbs. Since any listing 150 lbs and above is required by eBay to be classified as freight, and these will not be shipped freight, the initial shipping price is not accurate. Please DO NOT PAY without receiving an accurate quote from us. Manual: https://audioresearch.com/wp-content/uploads/2021/08/REF250_Manual.pdf Specifications: POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) POWER BANDWIDTH: (-3dB points) 5Hz to 70kHz. FREQUENCY RESPONSE: (-3dB points at 1 watt) 0.5Hz to 110 kHz. INPUT SENSITIVITY: 2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.) INPUT IMPEDANCE: 200K ohms Balanced. OUTPUT TAPS: 4, 8, 16 ohms. OUTPUT REGULATION: Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10). OVERALL NEGATIVE FEEDBACK: 8.8dB. SLEW RATE: 20 volts/microsecond. RISE TIME: 1.5 microseconds. HUM & NOISE: Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output). POWER SUPPLY ENERGY STORAGE: Approximately 900 joules. POWER REQUIREMENTS: 105-130VAC 60Hz (260- 250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off. TUBES REQUIRED: 3 Matched pair KT120 (Power output V1-6); 1 Matched pair KT120 (Driver V8- 9); 2 6H30 (Gain stage V7 and Regulator Driver V10); 1 6550C (Regulator V11). DIMENSIONS: 19 (48.3 cm) W x 8.75 (22.2 cm) H x 19.5 (49.5 cm) D. Handles extend 1.5 (3.8 cm) forward Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong. Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

The Audio Research LS17 Tube Preamplifier is a high-quality audiophile preamp designed by Audio Research. This tube amplifier features two channels and comes in a sleek black color. Known as the Baby Ref, this preamplifier is ideal for enhancing the audio quality of your home audio system. With its tube technology and Audio Research's reputation for producing high-end audio equipment, the LS17 is sure to provide a superior listening experience for audiophiles. The preamp is in excellent physical and operational condition. The case and face are near mint. The top has a couple of linear marks that can’t be captured in the photos. They aren’t scratches, more like scuffs that can only be seen at certain angles with the light. It works perfectly. I don’t know how many hours are on the tubes. I purchased locally approximately 6 months ago while my SP16 was awaiting repair. I love the sound, but I do want to return to a built in phono input. This preamp is line stage only. Balanced inputs and outputs are nice to have as well for those that can use them. I do not have remote, manual, or original box. I will include a power cable. I will pack carefully and ship quickly. I think you’ll be very happy - it’s a beautiful preamp with great sound. Check all the rave reviews online.

MSRP: $25,000 for the pair Used, mint condition Uses IEC C19 power cables (Included) Including extra set of tubes. Ships in original box. Will ship individually (two separate packages) @ 90 lbs each, totaling 180 lbs. Since any listing 150 lbs and above is required by eBay to be classified as freight, and these will not be shipped freight, the initial shipping price is not accurate. Please DO NOT PAY without receiving an accurate quote from us. Manual: https://audioresearch.com/wp-content/uploads/2021/08/REF250_Manual.pdf Specifications: POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) POWER BANDWIDTH: (-3dB points) 5Hz to 70kHz. FREQUENCY RESPONSE: (-3dB points at 1 watt) 0.5Hz to 110 kHz. INPUT SENSITIVITY: 2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.) INPUT IMPEDANCE: 200K ohms Balanced. OUTPUT TAPS: 4, 8, 16 ohms. OUTPUT REGULATION: Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10). OVERALL NEGATIVE FEEDBACK: 8.8dB. SLEW RATE: 20 volts/microsecond. RISE TIME: 1.5 microseconds. HUM & NOISE: Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output). POWER SUPPLY ENERGY STORAGE: Approximately 900 joules. POWER REQUIREMENTS: 105-130VAC 60Hz (260- 250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off. TUBES REQUIRED: 3 Matched pair KT120 (Power output V1-6); 1 Matched pair KT120 (Driver V8- 9); 2 6H30 (Gain stage V7 and Regulator Driver V10); 1 6550C (Regulator V11). DIMENSIONS: 19 (48.3 cm) W x 8.75 (22.2 cm) H x 19.5 (49.5 cm) D. Handles extend 1.5 (3.8 cm) forward Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong. Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

The Audio Research LS17 Tube Preamplifier is a high-quality audiophile preamp designed by Audio Research. This tube amplifier features two channels and comes in a sleek black color. Known as the Baby Ref, this preamplifier is ideal for enhancing the audio quality of your home audio system. With its tube technology and Audio Research's reputation for producing high-end audio equipment, the LS17 is sure to provide a superior listening experience for audiophiles. The preamp is in excellent physical and operational condition. The case and face are near mint. The top has a couple of linear marks that can’t be captured in the photos. They aren’t scratches, more like scuffs that can only be seen at certain angles with the light. It works perfectly. I don’t know how many hours are on the tubes. I purchased locally approximately 6 months ago while my SP16 was awaiting repair. I love the sound, but I do want to return to a built in phono input. This preamp is line stage only. Balanced inputs and outputs are nice to have as well for those that can use them. I do not have remote, manual, or original box. I will include a power cable. I will pack carefully and ship quickly. I think you’ll be very happy - it’s a beautiful preamp with great sound. Check all the rave reviews online.

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Audio Research Ref 160M MkI Mono Power Amplifier - PAIR Color: Silver These amplifiers are in excellent condition and function flawlessly. They are consecutive serial number amplifiers and they include their original packaging, user manual, tubes (1278 hours), 20a power cords, bias adjustment tool, and cover removal tool. These amplifiers are available with freight shipping available or for local pickup in Columbus, OH. Feel free to message me your shipping zip code for a freight quote. Do not miss the chance to own these amazing amplifiers at an incredible price.After two years in development, the new Reference 160M (REF160M) Monoblock Power Amplifier is built like no other, looks like no other, and sounds like no other amplifier that you have ever heard, but it is unmistakably Audio Research. It features a refined audio topology with fewer and better components in the signal-path than in previous designs, switchable Ultralinear/Triode operation, proprietary auto-bias, output tube monitoring and protection, an advanced power meter, and much more. This array of features has never been offered before in an Audio Research amplifier. The designers at Audio Research wanted to create a new style that would complement the look of the REF6 preamp while also featuring a transparent faceplate that allows a view of the glowing KT150 vacuum tubes. While this window allows you to see the output tubes, it also incorporates an innovative dual-layer construction with distinctively etched markings that create an integrated power meter. The power meter’s output-level markings illuminate via hidden LEDs, and the illumination brightness is adjustable. The REF160M includes a sculpted cover with an integrated fan to cool the heat generated by the four (4) KT150 output tubes and two (2) 6H30 driver tubes. Solid-state power regulation was chosen to provide increased efficiency, stability, and reliability. The power supply stage uses a newly developed High Energy Capacity Transformer and a hefty bulk storage-capacity network to provide extremely high current on demand for transient peaks and intense dynamics, as well as for prodigious bass depth and authority. It is understood that the best path is the shortest path. Audio Research engineers created a new audio circuit topology with the shortest signal path and the fewest components. Those components are not only the best available, many are custom made for Audio Research. Incorporating these quality components is a special 4-layer circuit board that lowers the noise floor to unprecedented levels, and a design which was previously reserved for use in our preamplifiers. The result is a new benchmark in musicality in every criterion of sound quality.The REF160M also features a proprietary auto-bias circuit that works with various tubes types, including 6550, KT88, and KT120, in addition to the supplied KT150 and works constantly to maintain precise bias of the output tubes, while also adjusting for tube wear. There is no need to check or adjust bias ever again.The new REF160M breaks new ground sonically, aesthetically and operationally, and will be available in Natural (Silver) or Black finishes.POWER OUTPUT140 watts continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 140 watts, below 0.04% at 1 watt. (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not critical)POWER BANDWIDTH(-3dB points) 5Hz to 70kHzFREQUENCY RESPONSE(-3dB points at 1 watt) 0.5Hz to 110 kHzINPUT SENSITIVITY2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms)INPUT IMPEDANCE300K ohms Balanced, 100K ohms Single EndedOUTPUT TAPS16 ohms, 8 ohms, 4 ohmsOUTPUT REGULATIONApproximately 0.6dB 16 ohm load to open circuitOVERALL NEGATIVE FEEDBACK14dBDAMPING FACTORApproximately 14DISTORTION-SLEW RATE13 volts/microsecondRISE TIME2.0 microsecondsHUM & NOISE-POWER SUPPLY ENERGY STORAGE-POWER REQUIREMENTS105-130VAC 60Hz (210-250VAC 50Hz) 400 watts at rated output, 700 watts maximum, 260 watts at “idle”, 1 watt of.TUBE COMPLEMENT(2 matched pair) KT150 power output, (2) 6H30 gain stageOTHEROutput polarity: Non-inverting. Balanced input pin 2+ (IEC-268).DIMENSIONSWidth 17 ¼ (43.8 cm). Height 10 (25.4 cm). Depth 18½ (47 cm). Handles extended 19 ¼ (48.9 cm).WEIGHT56 lbs. (25.5 kg) Net; 73 lbs. (33.2 kg) Shipping.Check out my other listings.Feel free to ask any questions.NOTE: These amplifiers are being offered with freight shipping available or for local pickup in Columbus, OH. They are being offered as is with no returns.

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Audio Januar 1998. Im Heft sind unter anderem folgende Themen, Tests bzw. Gerätebesprechungen zu finden: Magazin: DUAL: Dual stieg wieder in den Hifi-Markt ein - mit Schwierigkeiten. Ein Manager-Trio soll Abhilfe schaffen CD-Spieler Denon DCD-735 gegen Marantz CD-53 MK II Grundig CD 22 gegen Technics SL-PG 580 A Harman/Kardon HD 710 vs. Pioneer PD-S 505 Kenwood DP-5090 gegen Rotel RCD 950 Highend-CD-Player: Spectral SDR 3000 Jadis JD 1 MD-Recorder Onkyo MD-2511 Endverstärker mbl 9010 C Pass Aleph 1.2 Lautsprecher Aerial Modell 8 Arcus DS 77 Avalon Osiris Burmester B 97 Canton Fonum 630 DC Dali 606 Eltax LR 8.5 I.Q. Aspect 5 a Jamo 477 a Magnat Vector 55 MB Quart QL C 400 Mission 750 Phonar P 20 Polk Audio RT 600 Tannoy Mercury M 3 Plattenspieler Clearaudio Reference + Tonarm Souther TQI + System Clearaudio Insider VPI TNT IV mit Tonarm JMW 12-Zoll + Tonabnehmer Audioquest AQ 7000 FE 5 Phono-Vorstufe: FM 222 Receiver + Boxen: T + A K 3 + Boxenset T + A TAS 750 E, T + A TAS 750 E/TAV 500/TAB 600 E/TAW 601 A D/A-Wandler: MBL 1611 Spectral SDR 2000 Professional Test: Cinchkabel-Test von 80 - 750 DM: Wire World Solstice II + Interlink 250 Straight Wire Chorus + Encore II + Sonata XLO/PRO 150 Oehlbach NF-14 Kimber KC 1 Mogami Crystal Clear MIT Terminator T4 Ixos 103 und mehr Vorverstärker Audio Research Reference 1 Burmester 808 Mk 5 Musik: Billy Joel Metallica The Cure Dire Straits Eric Clapton Queen Robert Smith Die Audio-Bestenliste Viele ausführliche CD- bzw. Plattenbesprechungen Anzeigen aus der damaligen Zeit und vieles mehr Zustand: Lager- und Gebrauchsspuren. Das Heft ist schwer, deshalb ist das Porto etwas höher. Falls nicht ausdrücklich erwähnt, sind die Hefte immer ohne CD und sonstige Beilagen. Die Hefte sind auch alle mehr oder weniger gebraucht. Es können evtl. Markierungen bei der Announcen vorhanden sein. Auch ist vereinzelt der Adressaufkleber noch ganz bzw. teilweise vorhanden, es können auch noch Reste am Heft sein. Preisausschrauben wurden in der Regel ausgefüllt bzw. auch ausgeschnitten und sonstige Vorlagen zum Herausschneiden sind in der Regel entfernt. Ab und zu ist auch eine Plattenkritik ausgeschnitten. Abholung möglich oder Versand auf Kosten des Käufers. Abholung bevorzugt Versand erfolgt nach Zahlungseingang. Bezahlung muss innerhalb einer Woche erfolgen oder nach Vereinbarung mit mir. Erfüllunsort ist 69115 Heidelberg. Nach der allgemeinen Regelung des Bürgerlichen Gesetzbuches (BGB) trägt grundsätzlich der Käufer das Risiko des Verlusts und der Beschädigung der Ware auf dem Transportweg (§ 447 Abs.1 BGB). Der Versand der Ware geschieht also auf Risiko des Käufers. Dieses Angebot ist privater, nicht gewerblicher Natur. „Verkauf gebrauchter Ware von Privat“. Keine Haftung für Tippfehler. Bei Abholung 2 Monate Garantie, sonst: keine Garantie. Verkauf abweichend vom geltenden Recht.Mit der Abgabe eines Gebotes verzichten Sie auf die gesetzlichen Garantie- und Gewährleistungsansprüche sowie auf Ihr Rückgaberecht (ausser bei Abholung).

Audio Research Ref 210 Power Amplifier - PAIR MSRP: $21,990 These amps are in great condition and work flawlessly. They come with their packaging, KT 120 tube set, user manuals, remotes, and power cords. They have a total of 1792 hours on the tubes and work great. There are a few minor marks on the amps as shown in the pictures though they are in good condition overall. These amps are available with freight shipping available or for local pickup in Columbus, OH. Please message me with your shipping zip code if you would like a shipping quote. Do not miss out on this rare opportunity! POWER OUTPUT210 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 210 watts, below .02% at 1 watt. Approximate actual power available at “clipping” 240 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)POWER BANDWIDTH(-3dB points) 10Hz to 150kHzFREQUENCY RESPONSE(-3dB points at 1 watt) 0.5Hz to 240 kHz.INPUT SENSITIVITY1.7V RMS Balanced for rated output. (27 dB gain into 8 ohms.)INPUT IMPEDANCE200K ohms BalancedOUTPUT TAPS4, 8 and 16 ohmsOUTPUT REGULATIONApproximately 0.6dB ohm load to open circuitOVERALL NEGATIVE FEEDBACK12dBDAMPING FACTORApproximately 14DISTORTION-SLEW RATE40V/µsRISE TIME1.2 µsHUM & NOISELess than 0.3mV RMS - 106dB below rated output (IHF-A weighted, input shorted, 16 ohm output)POWER SUPPLY ENERGY STORAGEApproximately 787 joulesPOWER REQUIREMENTS105-130VAC 60Hz (260-250VAC 50Hz) 680 watts at rated output, 950 watts maximum, 380 watts at idle, .15 watts off.TUBE COMPLEMENT(3 matched pairs) 6550C power output, (1 matched pair) 6550C driver, 2 - 6N1P gain stage and regulator driver, 1 6550C regulator.DIMENSIONS19 (48.3 cm) W x 8 ¾ (22.2 cm) H x 19½ (49.5 cm) D. Handles extend 1½ (3.8 cm) forward.WEIGHT74 lbs. (33.6 kg) Net; 89 lbs. (40.4 kg) Shipping.Check out my other listings.Feel free to ask any questions.NOTE: These amps are being offered with freight shipping available or for local pickup in Columbus, OH. They are being offered as is with no returns.

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

MSRP: $25,000 for the pair Used, mint condition Uses IEC C19 power cables (Included) Including extra set of tubes. Ships in original box. Will ship individually (two separate packages) @ 90 lbs each, totaling 180 lbs. Since any listing 150 lbs and above is required by eBay to be classified as freight, and these will not be shipped freight, the initial shipping price is not accurate. Please DO NOT PAY without receiving an accurate quote from us. Manual: https://audioresearch.com/wp-content/uploads/2021/08/REF250_Manual.pdf Specifications: POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) POWER BANDWIDTH: (-3dB points) 5Hz to 70kHz. FREQUENCY RESPONSE: (-3dB points at 1 watt) 0.5Hz to 110 kHz. INPUT SENSITIVITY: 2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.) INPUT IMPEDANCE: 200K ohms Balanced. OUTPUT TAPS: 4, 8, 16 ohms. OUTPUT REGULATION: Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10). OVERALL NEGATIVE FEEDBACK: 8.8dB. SLEW RATE: 20 volts/microsecond. RISE TIME: 1.5 microseconds. HUM & NOISE: Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output). POWER SUPPLY ENERGY STORAGE: Approximately 900 joules. POWER REQUIREMENTS: 105-130VAC 60Hz (260- 250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off. TUBES REQUIRED: 3 Matched pair KT120 (Power output V1-6); 1 Matched pair KT120 (Driver V8- 9); 2 6H30 (Gain stage V7 and Regulator Driver V10); 1 6550C (Regulator V11). DIMENSIONS: 19 (48.3 cm) W x 8.75 (22.2 cm) H x 19.5 (49.5 cm) D. Handles extend 1.5 (3.8 cm) forward Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong. Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

VENDO FRONTALE + 2 MANIGLIE + SET VITI FINITURA SILVER / NATURAL PER AUDIO RESEARCH REFERENCE ONE !!! INTROVABILI !!! NUOVI MAI USATI - FOR SALE FACEPLATE + 2 HANDLES + SCREW SET SILVER / NATURAL FOR AUDIO RESEARCH REFERENCE ONE !!! IMPOSSIBLE TO FIND !!! NEW NEVER USED NOS - NEW OLD STOCK E GRADITO IL RITIRO A MANO, CON PAGAMENTO IN CONTANTINO PROVE QUELLO CHE VEDETE NELLE FOTO E QUELLO CHE ACQUISTATE ESSENDO UNA VENDITA DI OGGETTO USATO DA COLLEZIONE PRIVATA E ESCLUSA QUALSIASI FORMA DI GARANZIA O RESTITUZIONE. FORMULA VISTO E PIACIUTO. LOGGETTO VIAGGIA A RISCHIO E PERICOLO DELLACQUIRENTEIL MIO IMPEGNO E QUELLO DI ESEGUIRE LIMBALLO NEL MIGLIOR MODO POSSIBILE(OVE NON DISPONIBILE LIMBALLO ORIGINALE)E DAI MIEI FEEDBACK POTETE LEGGERE TESTIMONIANZA DI QUESTO il pagamento deve avvenire entro 3 giorni dalla aggiudicazione, trascorsi 4 giorni sarà fatta segnalazione a Ebay di offerente non pagante e loggetto verra rimesso in vendita INTERNATIONAL BUYERS WELCOMESOLD AS IS - NO RETURNPLEASE ASK FOR SHIPPING COSTpayment within 3 days

MSRP: $25,000 for the pair Used, mint condition Uses IEC C19 power cables (Included) Including extra set of tubes. Ships in original box. Will ship individually (two separate packages) @ 90 lbs each, totaling 180 lbs. Since any listing 150 lbs and above is required by eBay to be classified as freight, and these will not be shipped freight, the initial shipping price is not accurate. Please DO NOT PAY without receiving an accurate quote from us. Manual: https://audioresearch.com/wp-content/uploads/2021/08/REF250_Manual.pdf Specifications: POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) POWER BANDWIDTH: (-3dB points) 5Hz to 70kHz. FREQUENCY RESPONSE: (-3dB points at 1 watt) 0.5Hz to 110 kHz. INPUT SENSITIVITY: 2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.) INPUT IMPEDANCE: 200K ohms Balanced. OUTPUT TAPS: 4, 8, 16 ohms. OUTPUT REGULATION: Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10). OVERALL NEGATIVE FEEDBACK: 8.8dB. SLEW RATE: 20 volts/microsecond. RISE TIME: 1.5 microseconds. HUM & NOISE: Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output). POWER SUPPLY ENERGY STORAGE: Approximately 900 joules. POWER REQUIREMENTS: 105-130VAC 60Hz (260- 250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off. TUBES REQUIRED: 3 Matched pair KT120 (Power output V1-6); 1 Matched pair KT120 (Driver V8- 9); 2 6H30 (Gain stage V7 and Regulator Driver V10); 1 6550C (Regulator V11). DIMENSIONS: 19 (48.3 cm) W x 8.75 (22.2 cm) H x 19.5 (49.5 cm) D. Handles extend 1.5 (3.8 cm) forward Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong. Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

PREOWNED - $10,000 LIST! - FULLY TESTED - INCLUDES ELECTRO-HARMONIX TUBES, REMOTEDescription: Tubed, remote-controlled line preamplifier with full sets of balanced and unbalanced inputs and outputs, and Processor Loop. Tube complement: four 6H30P dual triodes, plus one 6550C and one 6H30P for power-supply regulation. Maximum voltage gain: main output (single-ended or balanced input), 11.6dB; balanced output, 5.6dB single-ended output. Frequency response: 0.2Hz–200kHz , +0/–3dB, at rated output (balanced, 200k ohms load). Distortion: <0.01% at 2V RMS balanced output. Input impedance: 120k ohms balanced, 60k ohms single-ended. Output impedance: 600 ohms balanced, 300 ohms single-ended main (2), 20k ohms minimum load and 2000pF maximum capacitance. Output polarity: noninverting. Maximum output: 20V RMS maximum balanced, 10V RMS single-ended. Rated output: 2V RMS (1V RMS single-ended) into 200k ohm balanced load (maximum balanced output capability is 30V RMS at <0.5% THD at 1kHz). Noise: 2.7µV RMS residual IHF-weighted balanced noise output with volume at 1 (106dB below 2V RMS output).Dimensions: 19 (485mm) W by 7 (178mm) H by 15.5 (394mm) D. Handles extend 1.5 (38mm) forward of front panel. Weight: 29.6 lbs (13.5kg) net, 43 lbs (19.5kg) shipping. Hi-Fi Heaven1549 Sixth StGreen Bay, WI 54304Contact us with your exact shipping address for accurate shipping cost.Larger speakers and items over 150lbs are strapped to a pallet and shipped via Freight including liftgate and residential delivery.We accept Pay-Pal or credit cards by contacting our store.We offer a 4% discount with payment by Zelle or check.Defective items are exchanged within 14 days from delivery.After 14 days, the manufacturers warranty will apply. Contact us for any assistance in obtaining warranty assistance.Defective item returns must be in the manufacturers original packaging, in like-new condition, including all packaging materials, shipped as-received and fully insured.Items are guaranteed to be as described.If a refund is desired, we will refund your full purchase price minus a 20% restocking fee.The item must be as received & unopened. Buyer pays return shipping costs.If you are having a problem, Please call before making a return claim on eBay.We do not offer free auditions or trials of merchandise.Returns will only be accepted for items that are truly defective.We use methods to detect product tampering.We will seek legal action against any individual or entity attempting to defraud us.Hi-Fi Heaven1549 Sixth StGreen Bay, WI 54304

MSRP: $25,000 for the pair Used, mint condition Uses IEC C19 power cables (Included) Ships in original box. Will ship individually (two separate packages) @ 90 lbs each, totaling 180 lbs. Since any listing 150 lbs and above is required by eBay to be classified as freight, and these will not be shipped freight, the initial shipping price is not accurate. Please DO NOT PAY without receiving an accurate quote from us. Manual: https://audioresearch.com/wp-content/uploads/2021/08/REF250_Manual.pdf Specifications: POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) POWER BANDWIDTH: (-3dB points) 5Hz to 70kHz. FREQUENCY RESPONSE: (-3dB points at 1 watt) 0.5Hz to 110 kHz. INPUT SENSITIVITY: 2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.) INPUT IMPEDANCE: 200K ohms Balanced. OUTPUT TAPS: 4, 8, 16 ohms. OUTPUT REGULATION: Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10). OVERALL NEGATIVE FEEDBACK: 8.8dB. SLEW RATE: 20 volts/microsecond. RISE TIME: 1.5 microseconds. HUM & NOISE: Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output). POWER SUPPLY ENERGY STORAGE: Approximately 900 joules. POWER REQUIREMENTS: 105-130VAC 60Hz (260- 250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off. TUBES REQUIRED: 3 Matched pair KT120 (Power output V1-6); 1 Matched pair KT120 (Driver V8- 9); 2 6H30 (Gain stage V7 and Regulator Driver V10); 1 6550C (Regulator V11). DIMENSIONS: 19 (48.3 cm) W x 8.75 (22.2 cm) H x 19.5 (49.5 cm) D. Handles extend 1.5 (3.8 cm) forward Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong. Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

MSRP: $25,000 for the pair Used, mint condition Uses IEC C19 power cables (Included) Ships in original box. Will ship individually (two separate packages) @ 90 lbs each, totaling 180 lbs. Since any listing 150 lbs and above is required by eBay to be classified as freight, and these will not be shipped freight, the initial shipping price is not accurate. Please DO NOT PAY without receiving an accurate quote from us. Manual: https://audioresearch.com/wp-content/uploads/2021/08/REF250_Manual.pdf Specifications: POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) POWER BANDWIDTH: (-3dB points) 5Hz to 70kHz. FREQUENCY RESPONSE: (-3dB points at 1 watt) 0.5Hz to 110 kHz. INPUT SENSITIVITY: 2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.) INPUT IMPEDANCE: 200K ohms Balanced. OUTPUT TAPS: 4, 8, 16 ohms. OUTPUT REGULATION: Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10). OVERALL NEGATIVE FEEDBACK: 8.8dB. SLEW RATE: 20 volts/microsecond. RISE TIME: 1.5 microseconds. HUM & NOISE: Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output). POWER SUPPLY ENERGY STORAGE: Approximately 900 joules. POWER REQUIREMENTS: 105-130VAC 60Hz (260- 250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off. TUBES REQUIRED: 3 Matched pair KT120 (Power output V1-6); 1 Matched pair KT120 (Driver V8- 9); 2 6H30 (Gain stage V7 and Regulator Driver V10); 1 6550C (Regulator V11). DIMENSIONS: 19 (48.3 cm) W x 8.75 (22.2 cm) H x 19.5 (49.5 cm) D. Handles extend 1.5 (3.8 cm) forward Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong. Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

Edwards Home Entertainment and Design, an appointed and displaying dealer for McIntosh, Magico, Luxman, Bowers & Wilkins, Focal, NAIM, Parasound, Classe Audio, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Soul Note, Gold Note, Marantz, Rose HiFi, AudioQuest SUMMIT Dealer (only Dragon dealer in San Francisco Bay Area), Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this wonderful Audio Research SP-11/SP-11PS combo. This set is in fine functional and physical condition, with a few superficial surface marks. I will post tubes later this week. Sonically an aesthetically gorgeous. Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2800, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Magico (displaying the A1, A5, and S3 mk3, S5 mk3), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4, 805D4, 702S3, 705S3), Luxman (displaying C-10X, M-10X, D-10X, NT-07, L-509Z, and the PD151D), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre2, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS130, RS250 and RS520), Marantz (displaying Model 10 Integrated, SACD-10 Super Audio SACD/CD Player, Link 10n Streamers, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, T9/x, T7/x. T5/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Dragon, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

MSRP: $12,500 Used, mint condition Uses IEC 19 power cable (Included) Manual: https://audioresearch.com/wp-content/uploads/2021/08/REF250_Manual.pdf Specifications: POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 270 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) POWER BANDWIDTH: (-3dB points) 5Hz to 70kHz. FREQUENCY RESPONSE: (-3dB points at 1 watt) 0.5Hz to 110 kHz. INPUT SENSITIVITY: 2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.) INPUT IMPEDANCE: 200K ohms Balanced. OUTPUT TAPS: 4, 8, 16 ohms. OUTPUT REGULATION: Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10). OVERALL NEGATIVE FEEDBACK: 8.8dB. SLEW RATE: 20 volts/microsecond. RISE TIME: 1.5 microseconds. HUM & NOISE: Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output). POWER SUPPLY ENERGY STORAGE: Approximately 900 joules. POWER REQUIREMENTS: 105-130VAC 60Hz (260- 250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at “idle,” 1 watt off. TUBES REQUIRED: 3 Matched pair KT120 (Power output V1-6); 1 Matched pair KT120 (Driver V8- 9); 2 6H30 (Gain stage V7 and Regulator Driver V10); 1 6550C (Regulator V11). DIMENSIONS: 19 (48.3 cm) W x 8.75 (22.2 cm) H x 19.5 (49.5 cm) D. Handles extend 1.5 (3.8 cm) forward Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong. Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.