Audio Research Ref 10 Stereo Line Stage Preamplifier MSRP: $35,000 Color: SilverThis preamplifier is in excellent condition and functions flawlessly. This is one of the best stereo preamplifiers on the market and it sounds absolutely phenomenal. This preamplifier has zero hours on the tubes as shown in the pictures. It includes the original packaging, remote, user manual, tubes (zero hours), chassis interconnects, and power cord. Do not miss the chance to own this amazing preamplifier at an unbeatable price. Electronic SpecificationsFREQUENCY RESPONSE+0 -3dB 0.1Hz to 200kHz at rated output. (BALANCED, 200k ohms load.)DISTORTIONLess than .006% at 2V RMS Balanced output. GAINMain output (SE or BAL input)12dB Balanced output, 6dB Single Ended output. Tape output: 0dB. (Processor input: 0dB Balanced)INPUT IMPEDANCE120K ohms Balanced, 60K ohms SE, Inputs (7): 1, 2, 3, 4, 5, 6, PROCESSOR. (XLR and RCA connectors).OUTPUT IMPEDANCE600 ohms Balanced, 300 ohms SE main (2), 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3): 2 main, 1 tape (XLR and RCA connectors).OUTPUT POLARITYNon inverting.MAXIMUM INPUT20V RMS maximum Balanced, (10V RMS SE).RATED OUTPUTS2V RMS (1V RMS SE) into 200K ohm balanced load (maximum balanced output capability is 30V RMS at less than 0.5% THD at 1kHz).CROSSTALK-80dB or better at 1kHz.CONTROLSVolume (104 steps). Push Buttons: Power, Mute, Interactive Touch Panel. Rear RS-232 control and IR input.POWER SUPPLIESElectronically regulated low and high voltage supplies. Automatic 40 sec. warm-up/brown-out mute. Line regulation better than .01%.NOISE1.7uV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (109dB below 2V RMS output.) TUBE COMPLEMENT(8)-6H30P dual triodes, plus (2 each) 6550C and 6H30P in power supply.Check out my other listings.Feel free to ask any questions.I ship items only to buyers with signature required on items above $750.NOTE: Returns not accepted.

This Advertisement is a reprint from 1994. It is on glossy photo paper and is in Excellent condition! The Picture is the picture of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg

One (1) original Audio Research Reference 6 preamplifier metal remote. Working condition without problem.

Audio research ref 80s used!! On 1200 hours on the tubes !! Comes with factory box and manual and power cord!! Free shipping by FedEx!! Shipping!! No !! Dents or scratches!!

Audio Research Ref 80S Tube Power Amplifier Color: SilverMSRP: $16,000 This amplifier is in excellent condition and works flawlessly. It comes in its original packaging with the original tubes (629.2 hours), user manual, tools, and power cord. This amplifier is incredible and sounds superb. Do not miss out on the chance to own this incredible amplifier while saving a fortune over new! Check out my other listings.Feel free to ask any questions.I ship items only to buyers with signature required on items above $750.NOTE: Returns not accepted.

Audio Research Ref3 SE Stereo Preamplifier MSRP: $19,500 Color: Silver This phono preamplifier is in excellent condition and functions flawlessly. This is one of the best phono stages you can get from audio research and it sounds incredible. It comes with a Ref3 SE remote, original tube set with 279 hours, power cord, Ref3 SE manual, and the original packaging. Do not miss the chance to own this amazing preamplifier at an unbeatable price. Electronic SpecificationsElectronic SpecificationsFrequency Response:±.2 dB of RIAA, 10 Hz to 60kHz; 3 dB points below 0.3Hz and above 300 kHz.Distortion:Less than .002% at 1.0V RMS 1kHz output.Gain:Selectable 51 dB (Low) and 73 dB (High) at 1kHz BAL; 45 dB (Low) and 67 dB (High) at 1kHz SE. (MC and MM compatible).Input Impedance:47k Ohms and 100 pF SE. Selectable loads: 1000, 500, 200, 100, 50 Ohms, and Custom.Output Impedance:400 ohms Balanced, 200 ohms SE. Recommended load 50k-100k Ohms and 100 pF. (10k Ohms minimum and 2000 pF maximum).Output Polarity:Non-inverting.Phono Equalization:(selectable) RIAA, Columbia, and Decca.Maximum Input:250 mV RMS at 1kHz (680 mV RMS at 10kHz) – Low Gain.Rated Outputs:2V RMS (1V RMS SE) into 200K ohm balanced load (maximum balanced output capability is 30V RMS at less than 0.5% THD at 1kHz).Controls:6 Push Buttons: Power, Menu, Option, Enter, Input, Mute.Power Supplies:Electronically regulated low and high voltage supplies. Automatic 2 minute warm-up/brown-out mute. Line regulation better than .01%.Noise:0.28 µV equivalent input noise, IHF weighted. Shorted (Low Gain) input (71 dB below 1mV 1kHz input). 0.082 µV equivalent input noise (High Gain). (62 dB below 0.1 mV 1kHz input).Tube Complement:(6)-6H30P dual triodes, plus (1 each) 6550WE and 6H30P in power supply.Power Requirements:100-135VAC 60Hz (200-270VAC 50/60Hz) 130 watts. Standby: 2 watts.Dimensions:Width 19” (48 cm)Height 7.8” (19.8 cm)Depth 16.5” (41.9 cm)Handles extend 1.6” (4 cm) forward of the front panel.Weight:36.5 lbs. (16.6 kg) Net; 53 lbs. (24 kg) Shipping.Check out my other listings.Feel free to ask any questions.I ship items only to buyers with signature required on items above $750.NOTE: Returns not accepted.

Audio Research Ref 250 SE Mono Power Amplifier - PAIR MSRP: $34,000 Color: Silver These amplifiers are in excellent condition and function flawlessly. These are some of the best amplifiers you can get from audio research and they sound incredible. They include the original packaging, user manual, tubes, and 20a power cords. Do not miss the chance to own these amazing amplifiers at an unbeatable price. Due to the size and weight of these amplifiers, they are available with freight shipping available (in the boxes and strapped to a pallet) or for local pickup in Columbus, OH. If you would like a freight quote, please message me with your shipping zip code. Check out my other listings.Feel free to ask any questions.NOTE: This amplifier is being offered with shipping available or for local pickup in Columbus, OH. The amp is being offered as is with no returns.

Audio Research Ref 10 Phono Stereo Preamplifier MSRP: $35,000 Color: Silver This preamplifier is in excellent condition and functions flawlessly. This is one of the best stereo preamplifiers you can get from audio research and it sounds incredible. It comes with the original remote, user manual, chassis interconnects, 20a power cord, and a zero hour tube set. Do not miss the chance to own this amazing preamplifier at an unbeatable price. Electronic SpecificationsElectronic SpecificationsFREQUENCY RESPONSE ± .2dB of RIAA, 10Hz to 60kHz; 3dB points below 0.3Hz and above 300kHz.DISTORTION Less than .002% at 1.0V RMS 1kHz output.GAINSelectable 51dB (Low), 74dB (High) at1kHz BAL; 45dB (Low), 68dB (High) at1kHz SE. (MC & MM compatible).BUTTONS Front (2) Power, Mute.INPUT IMPEDANCE 47K ohms and 100pF SE. Selectable loads 1000, 500, 200, 100, 50 ohms and Custom.PHONO EQUALIZATION(Selectable) RIAA, Columbia, Decca.OUTPUT POLARITY Non inverting.OUTPUT IMPEDANCE 200 ohms SE, 400 ohms balanced. Recommended load 50K-100K ohms and 100pF. (10K ohms minimum and 2000pF maximum).MAXIMUM INPUT 250mV RMS at 1kHz (680 mV RMS at10kHz).RATED OUTPUTS 0.5V RMS 10Hz to 20kHz, 100K ohm load (output capability is 80V RMS BAL output at 1/2% THD at1kHz, 40V SE).POWER SUPPLIESElectronically regulated low and high voltage supplies. Automatic 40 sec. warm-up/brown-out mute. Line regulation better than .01%.NOISE0.22uV equivalent input noise, IHF weighted, shorted(Low Gain) input (73 dB below 1mV 1kHz input). 0.055uV equivalent input noise (High Gain) (65dB below 0.1mV 1kHz input).TUBE COMPLEMENT (8)-6H30P dual triodes, plus (2 each) 6550C and 6H30P in power supply.POWER REQUIREMENTS100-135VAC 60Hz (200-270VAC 50/60Hz) 235 watts maximum. Standby 0.8 watts.DIMENSIONS Width 19” (48 cm); Height 7” (17.8 cm) (standard rack panel).Check out my other listings.Feel free to ask any questions.I ship items only to buyers with signature required on items above $750.NOTE: Returns not accepted.

Verkaufe Röhrenvorstufe Audio Research Reference 3 / Top-Zustand / Manual / Fernbedienung; Gerät stammt aus einem tierlosen Nichtraucherhaushalt und wurde pfleglich behandelt; OVP ist nicht vorhanden, ein transportsicherer Versand ist ohne Probleme möglich, Versandkosten innerhalb BRD betragen 30,-- EUR zu Lasten des Käufers; Referenz-Vorverstärker von Audio Research. Vollständig symmetrisch aufgebaut. Alle Eingänge können im symmetrischen oder unsymmetrischen Modus verwendet werden. Alle von mir bei eBay eingestellten Artikel sind nach bestem Wissen & Gewissen gesichtet und beschrieben worden. Die von mir erkannten Mängel werden in der Artikelbeschreibung benannt. Jedoch erheben sie keinen Anspruch auf Vollständigkeit, die sich gerade bei älteren Artikeln schon aus der Sache heraus ergeben können. Die eingestellten Bilder sind vom Original erstellt worden. Es ist nichts fototechnisch entstellt oder verändert worden. Ich gewähre 12 Monate Gewährleistung. Inzahlungnahmen sind möglich. Die MwSt ist nicht ausweisbar (§25 UStG Differenzbesteuerung) Bei weiteren Fragen, einfach Kontakt aufnehmen. Ich bin Fachhändler für diverse Hifi Produkte.

Audio Research Reference 75SE Stereo Tube Power Amplifier; Ref 75 SE; Silver Excellent working condition. Small scratch on top edge but overall in great shape. Power cable included. Will ship in an audio research reference cd box and packaging which is the same size of the amplifier. Tube will be removed and pack separately. Will double box for extra protection.

We are pleased to offer for sale this magnificent collectors item! Considered by most engineers, audiophiles and musicians alike to be the best and finest sounding Audio Research amplifier, we not only agree, but would add one of the best amplifiers ever made, Period ! This one is a true Gem and pretty close to pristine ! This beauty is from a one owner, no pet and no smoking household with very little use! The amp is just back from Avatar Engineering where it has been refurbished a $1200 service! The service included all:New audiophile electrolytic capacitors ( see photos) along with polypropylene bypass caps and ultra fast recovery rectification. Mylar driver capacitors were replaced with audio grade polypropelene film capacitors. Key resistors were replaced with NOS Allen Bradley, Kiwame, Takman , and ultra quite/ precision Vishay film and foil .01 % units!Zener diodes were upgraded with Mil-Spec replacements. the incandescent lamps were also replaced with LED lamps. The original owner had replaced the all the tubes with matched NOS Gold Aero ( German) tubes, before his passing. approximately 400 to 500 hrs of use on them. We tested them all and they were perfect!If you are collector or simply a true audiophile desiring the Best of the Best, here is a great opportunity to own a beautiful example that looks new and sounds better than new!We are offering a 30 day warranty at asking price.Discounts for cash transactions and local pick-up. Preferably I would like to sell the amp locally, however we will consider shipping. Cheers!

Audio Research Ref6 SE Stereo Preamplifier MSRP: $19,500 Color: Silver This preamplifier is in excellent condition and functions flawlessly. This is one of the best stereo preamplifiers you can get from audio research and it sounds incredible. It comes with a Ref6 remote, tube set with 148 hours, power cord, Ref6 manual, and Ref6 packaging. Do not miss the chance to own this amazing preamplifier at an unbeatable price. Electronic SpecificationsFREQUENCY RESPONSE+0-3dB, 0.4Hz to 200kHz at rated output (Balanced, 200k ohms load).DISTORTIONLess than .01% at 2V RMS BAL output.GAINMain output: 12dB Balanced output, 6dB SE output. Record out: 0dB (Processor input: 0dB BALoutput).INPUT IMPEDANCE120K ohms Balanced, 60K ohms SE. Inputs: 4 balanced, 4 single-ended. Assignableprocessor passthrough.OUTPUT IMPEDANCE600 ohms Balanced, 300 ohms SE Main (2). 20K ohms minimum load and 2000pFmaximum capacitance. Outputs (3): 2 main, 1 record out (XLR and RCA connectors).OUTPUT POLARITYNon-inverting.MAXIMUM INPUT18V RMS BAL, 9V RMS SE.RATED OUTPUTS2V RMS (1V RMS SE) into 200K ohm balanced load (maximum balanced output capabilityis 70V RMS at less than 0.5% THD at 1kHz).CROSSTALK-88dB or better at 1kHz and 10 kHz.CONTROLSRotary encoders: Volume (103 steps), Select Input. Push Buttons: Power, Menu, Enter, Mono,Invert, Mute.POWER SUPPLIESElectronically regulated low and high voltage supplies. Automatic 45 sec. warm-up/brown-out mute. Line regulation better than .01%.NOISE1.7uV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (109dB below 2V RMS output.)TUBE COMPLEMENT(6)-6H30P dual triodes, plus (1 each) 6550WE and 6H30P in power supply.POWER REQUIREMENTS100-135VAC 60Hz (200-250VAC 50/60Hz) 130 watts. Standby: 2 watts.DIMENSIONSWidth: 19” (48 cm)Height: 7.8” (19.8 cm)Depth: 16.5” (41.9 cm)Handles extend 1.6” (4 cm) forward of the front panel.Weight: 37.5 lbs. (17 kg) Net; 49 lbs. (22.3 kg) ShippingCheck out my other listings.Feel free to ask any questions.I ship items only to buyers with signature required on items above $750.NOTE: Returns not accepted.

Verkaufe 1 Paar Röhrenendstufen Audio Research Reference 600 MK III / Top-Zustand / Manual; Geräte stammen aus einem tierlosen Nichtraucherhaushalt und wurden pfleglich behandelt; Die Monos kommen mit einem komplett neuer und ungespielter Röhren aus 2021 (Rechnung vorhanden);OVP ist nicht vorhanden, ein transportsicherer Versand ist ohne Probleme möglich, Versandkosten innerhalb BRD betragen 100,-- EUR zu Lasten des Käufers; Alle von mir bei eBay eingestellten Artikel sind nach bestem Wissen & Gewissen gesichtet und beschrieben worden. Die von mir erkannten Mängel werden in der Artikelbeschreibung benannt. Jedoch erheben sie keinen Anspruch auf Vollständigkeit, die sich gerade bei älteren Artikeln schon aus der Sache heraus ergeben können. Die eingestellten Bilder sind vom Original erstellt worden. Es ist nichts fototechnisch entstellt oder verändert worden. Ich gewähre 12 Monate Gewährleistung. Inzahlungnahmen sind möglich. Die MwSt ist nicht ausweisbar (§25 UStG Differenzbesteuerung) Bei weiteren Fragen, einfach Kontakt aufnehmen. Ich bin Fachhändler für diverse Hifi Produkte.

1 pair of silver handles for Audio Research. These came from a Reference 5 phono preamplifier and the mounting holes are about 4 apart as shown. I no longer have the preamplifier and the price is for both handles. All sales are final so please review the photos and ask any questions prior to bidding. Returns or exchanges are not accepted. There is a 50% restocking fee for any returned package for any reason. Good luck & God Bless!

This Advertisement is a reprint from 1994. It is on glossy photo paper and is in Excellent condition! The Picture is the picture of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg

Audio Research Ref75 SE Stereo Power Amplifier MSRP: $10,000 This amp is in excellent condition and works flawlessly. It comes with the owners manual, tubes, screw driver, power cord, and original packaging. Do not miss out on the chance to own this incredible amplifier at a fraction of retail. Check out my other listings.Feel free to ask any questions.I ship items only to buyers with signature required on items above $750.NOTE: Returns not accepted.

This Advertisement is a reprint from 1994. It is on glossy photo paper and is in Excellent condition! The Picture is the picture of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg

This Advertisement is a reprint from 1994. It is on glossy photo paper and is in Excellent condition! The Picture is the picture of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg