When Audio Research built the Reference 1 preamp it was the very best preamplifier they could build with currently available technology. With each model, they designed a preamp that became the standard for other manufacturers. The current model is the 6SE. This unit is the 6, but the SE upgrade is available directly from ARC or authorized dealers. (The 6SE currently retails for $19K) If your ready to hear your music open up, come to life and completely revealed more than ever before, you owe it to yourself to experience the Ref 6. Read the reviews and see what your missing. This unit was traded-in from a client was loved his gear with great care. It includes all of the parts, paperwork and packing that it came with new. Its without blemish and has been well cared for. The included tubes were recently replaced so they have plenty of life left to enjoy. The original metal remote, manual, box / packing, and certificate of inspection are included. FEATURES:Remote controller, full balanced pre-ampTubed preamplifier with eight sets of balanced and unbalanced inputsThree sets of balanced and unbalanced outputsUnity-gain Processor input.Tube complement: 6550WE and 6H30P (power-supply regulation)Four 6H30P (dual triodes).Frequency response: 0.2Hz–200kHz, +0/–3dB, at rated output (balanced, 200k ohms load).Maximum voltage gain, main output (single-ended or balanced input): 12dB, balanced output; 6dB, single-ended output.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, 20k ohms minimum load and 2000pF maximum capacitance.Output polarity: non-inverting.Maximum input: 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: 1.7µV RMS residual IHF-weighted balanced noise output with volume control at 1 (109dB below 2V RMS output).Power consumption: standby, 2W; full output, 130W.Dimensions: 18.9 (485mm) W by 7.8 (178mm) H by 16.5 (394mm) D. Handles extend 1.5 (38mm) forward of front panel.Weight: 36.6 lbs (16.6kg) net, 52.9 lbs (24kg) shippingOriginal Retail price was $15,000 US

VINTAGE AUDIO RESEARCH MODEL SP-3 TUBE PREAMPLIFIER / PREAMP.

Here we have a very, very nice preamplifier by Audio Research model LS12. This is a solid state model and a hifi enthusiast dream equipment. Fully tested and found to be in good working condition. All inputs and outputs teste (well except for XLR connections) and all are in good working order. Nice clean sound, no noise, no static or distortion. Yes, I also tested PHONO input and that is working well. All switches work well. Volume is smooth without static. Input selector is also smooth and without noise. All lights work. Includes original remote which is also in good working condition. There was a small amount of battery leak corrosion in the battery compartment which I manages to clean and now it makes good contact with batteries. I guarantee you will receive this item in as pictured and described condition. Im a hifi enthusiast myself and know how to test equipment and what to look for. So this is not just coming straight from the thrift store to your home. It is straight from the home of an audiophile who took care of his equipment very well. The shipping being charged includes insurance and signature required for delivery of the package. So please note, no PO Box address and signature will be required. I am very experienced in packing and I ship very fast (within 24 hours of payment). NOTE: for these type of items I take detailed pictures of the inside and I make a video of the product working. If there are any issues I accept returns, no hassle return and no cost to you the buyer. As a rule I do NOT do partial returns/refunds. ONLY a full return and only after the product is received back.

Follow us| Sign up for our newsletter Audio Research Reference 1 - Audiophile Tube Stereo Preamplifier w Box + Remote For over 20 years High End Audio Auctions has been selling the finest HiFi online, but did you know that we BUY your HiFi equipment as well? Contact our sister company STEREOBUYERS for a fair quote today! All items included are pictured. Items are tested fully to ensure all functions work as expected - any defects and additional service done to the item are noted below. Items are not restored or reconditioned, unless specified. All items we sell come with a 30-day warranty - your satisfaction is guaranteed. Original shipping on returns will be refunded at the sellers discretion. Local Pickup in NYC Available Audio Research Reference 1 Details & Testing Notes Cosmetic Condition:9/10: Excellent - light use, no visible imperfections - Please see all high resolution photographs (including detailed inside shots) below.Functional Notes:Functions as intended and sounds great.Voltage:120V 50/60HzSerial #:56289008Original Box:YesManual:NoRemote:YesPower Cord:AttachedShipping Method:FedEx Ground (Domestic) / USPS Priority, Ebay Standard Delivery (International)Shipping Weight (lbs):42 (25x24x15) High-End Audio Auctions has been THE trusted source for high-end, classic and vintage audio components on eBay since 2000! Our unique products, unparalleled service and bombproof packaging keeps our customers coming back again and again. We are experts at selling and shipping worldwide, with items ranging from $5 to $50,000. We look forward to earning your repeat business! By placing a bid on any of our listings, you agree to our terms & conditions Click here to learn more Home| About Us| Store Policies| FAQs| Feedback| Contact Us| Custom Tuned Cables _gsrx_vers_1436 (GS 9.0.5 (1436))

Follow us| Sign up for our newsletter Audio Research Reference 3 - Audiophile Stereo Tube Preamplifier with Original Box and Remote Control For over 20 years High End Audio Auctions has been selling the finest HiFi online, but did you know that we BUY your HiFi equipment as well? Contact our sister company STEREOBUYERS for a fair quote today! All items included are pictured. Items are tested fully to ensure all functions work as expected - any defects and additional service done to the item are noted below. Items are not restored or reconditioned, unless specified. All items we sell come with a 30-day warranty - your satisfaction is guaranteed. Original shipping on returns will be refunded at the sellers discretion. Local Pickup in NYC Available Audio Research Reference 3 Details & Testing Notes Cosmetic Condition:7/10: Good - some signs of wear, looks used but well-maintainedCosmetic Notes:Unit shows minor scratches on faceplate below the buttons. Battery cover on plastic remote is loose. Good overall physical condition. Please see all high resolution photographs below.Functional Notes:Functions as intended and sounds great.Other Notes:3524 hours on tubes.Voltage:120V 60 HzSerial #:55203110Original Box:YesManual:NoRemote:YesPower Cord:YesAdditional Items:3rd party metal remote controlShipping Method:FedEx Ground (Domestic) / USPS Priority, Ebay Standard Delivery (International)Shipping Weight (lbs):38 (25x25x13) High-End Audio Auctions has been THE trusted source for high-end, classic and vintage audio components on eBay since 2000! Our unique products, unparalleled service and bombproof packaging keeps our customers coming back again and again. We are experts at selling and shipping worldwide, with items ranging from $5 to $50,000. We look forward to earning your repeat business! By placing a bid on any of our listings, you agree to our terms & conditions Click here to learn more Home| About Us| Store Policies| FAQs| Feedback| Contact Us| Custom Tuned Cables _gsrx_vers_1436 (GS 9.0.5 (1436))

Audio Research Model LS8 MKII Preamplifier original box and manual NEW CONDITION. This device is in new condition, selling because I purchased a new preamplifier. The preamplifier was upgraded to a MKII in 2000, and you can see proof of this upgrade in the photos. It comes with the original manual, quality assurance certificate and original box.

Audio Research Ref 10 Stereo Pre Amplifier MSRP: $35,000 Color: Black This preamplifier is in excellent condition and functions flawlessly. This is one of the best stereo preamplifiers on the market and it sounds absolutely phenomenal. It includes the original packaging, remote, manual, tubes, chassis interconnects, and power cord. Total hours displaying are 448 hours. 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.

Audio Research ARC SP-16 Tube preamplifier W Remote. I purchased this tube preamplifier about two months ago, and it was only used for a few hours in my system. This preamplifier does have a tube phono section as well as a tube line level section. The tubes in the photo section are the stock electro harmonix 12ax7’s. I did swap the tubes in the line level section to some used NOS,RCA Tubes. Two of those tubes are 12ax7’s and one is a 5751. I would describe the sound as extremely clean and pristine. But I wouldn’t describe the sound is overly tube like. I would rate the condition at a 7/10. A few minor scratches is all. No returns and shipping to the US continental only!

Please Note condition: rankD used There is stickiness on the cord. Accessories: main unit only Features/Remarks: Pure A-class designed tube and transistor hybrid preamplifier using 6922 vacuum tube (ECC88/6DJ8 high reliability tube). shipping from Japan. Please check the photos and let me know if you have any questions. (Dont worry when buying on ebay and PAYPAL, buyers are protected by buyer protection.) Policy PaymentPaypal or other credit cards, etc. Please make a payment within 3 days after you purchased. We ship the item to your ebay address.Shipping************************************************************ FEDEX Express with tracking number (Or other carrier) (Expendited Shipping) It takes 4-7 business days ************************************************************ WORLDWIDE FREE SHIPPING **ATTENTION** Usually ships within 5 days after payment. However, the handling time is set to 10 days because it may be delayed depending on the situation.Returns?Return and Exchange policy ? All returned item must be unused, unopened and undamaged in the same brand new condition as it was delivered to you. If the item does not under the brand new condition, we will not be able to make a full refund. After checking the item and estimating its condition, we will decide the percentage of the refund (80%, 50%, etc).All packaging, manuals, warranty cards, box and accessories must be sent back with the item. The item must be sent back via EMS(USPS) or any carrier that provides tracking number. In the case the item is returned due to postal problem or your absence, and you hope to cancel it even though ebay requests/cases limitation is expired,unfortunately we cannot refund ebay fees as well as shipping costs we paid. About Warranty Warranty period is complied with manufacuture regulation.When repairing, unless manufacture in your country can deal with it, you might have to send the item to Japan. We handle authentic product only, however our transaction is via auction site(ebay).Therefore we cannot make a definite promise that manufacture branches of your country can accept repair. We would appreciate your understanding. We do our best to resolve your problem. International Buyers - Please Note: Import Duties and Charged We ship the item from Japan. Import duties, taxes, and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying. These charges are normally collected by the shipping company or when you pick the item up - do not confuse them for additional shipping charges. In the case you refuse to pay import taxes and item is returned, we cannot refund shipping charges and ebay fees we paid.

Audio Research Model LS8 MKII Preamplifier original box and manual NEW CONDITION. This device is in new condition, selling because I purchased a new preamplifier. The preamplifier was upgraded to a MKII in 2000, and you can see proof of this upgrade in the photos. It comes with the original manual, quality assurance certificate and original box.

AUDIO RESEARCH MODEL PH 1 HIGH DEFINITION PHONO PREAMPLIFIER, IM SEHR SCHÖNEN ZUSTAND Nur leichte Gebrauchsspuren Das Gerät stammt aus den USA und ist eine 120 Volt Version mit amerikanischem Netzstecker.Zum Betrieb in D benötigt man einen Spannungsumwandler auf 220 Volt. Da ich keinen Spannungsumwandler habe, konnte ich das Gerät leider nicht testen.Verkauf daher als !! UNGETESTET !! und rein sicherheitshalber als teildefekt. Der DHL - Versand erfolgt sorgfältig verpackt Privat, keine Garantie/ Gewähr, keine Rücknahme

Audio Research Ref 10 Phono Preamplifier MSRP: $35,000 Color: Black This preamplifier is in excellent condition and functions flawlessly. This is one of the best phono preamplifiers on the market and it sounds absolutely incredible. There are a couple very minor marks on the unit but nothing you see from more than a foot away. It includes the original packaging, remote, manual copy, tubes, chassis interconnects, screwdriver, and power cord. Total hours displaying are 403 hours. 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.

Please Note condition: rankD used There is stickiness on the cord. Accessories: main unit only Features/Remarks: Pure A-class designed tube and transistor hybrid preamplifier using 6922 vacuum tube (ECC88/6DJ8 high reliability tube). shipping from Japan. Please check the photos and let me know if you have any questions. (Dont worry when buying on ebay and PAYPAL, buyers are protected by buyer protection.) Policy PaymentPaypal or other credit cards, etc. Please make a payment within 3 days after you purchased. We ship the item to your ebay address.Shipping************************************************************ FEDEX Express with tracking number (Or other carrier) (Expendited Shipping) It takes 4-7 business days ************************************************************ WORLDWIDE FREE SHIPPING **ATTENTION** Usually ships within 5 days after payment. However, the handling time is set to 10 days because it may be delayed depending on the situation.Returns?Return and Exchange policy ? All returned item must be unused, unopened and undamaged in the same brand new condition as it was delivered to you. If the item does not under the brand new condition, we will not be able to make a full refund. After checking the item and estimating its condition, we will decide the percentage of the refund (80%, 50%, etc).All packaging, manuals, warranty cards, box and accessories must be sent back with the item. The item must be sent back via EMS(USPS) or any carrier that provides tracking number. In the case the item is returned due to postal problem or your absence, and you hope to cancel it even though ebay requests/cases limitation is expired,unfortunately we cannot refund ebay fees as well as shipping costs we paid. About Warranty Warranty period is complied with manufacuture regulation.When repairing, unless manufacture in your country can deal with it, you might have to send the item to Japan. We handle authentic product only, however our transaction is via auction site(ebay).Therefore we cannot make a definite promise that manufacture branches of your country can accept repair. We would appreciate your understanding. We do our best to resolve your problem. International Buyers - Please Note: Import Duties and Charged We ship the item from Japan. Import duties, taxes, and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying. These charges are normally collected by the shipping company or when you pick the item up - do not confuse them for additional shipping charges. In the case you refuse to pay import taxes and item is returned, we cannot refund shipping charges and ebay fees we paid.