This is a reprint of an Audio Review from 1986! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

Follow us| Sign up for our newsletter Audio Research SP-11 - Audiophile Hifi Tube Stereo Preamplifier w Power Supply 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 SP-11 Details & Testing Notes Cosmetic Condition:7/10: Good - some signs of wear, looks used but well-maintainedCosmetic Notes:Unit shows light scratches on faceplate. Very good overall physical condition. Please see all high resolution photographs below.Functional Notes:Muting relay does not fully mute both channels, no big woop, other than that it functions as intended and sounds excellent.Voltage:120V 50/60HzSerial #:26534002/16535019Original Box:NoManual:NoPower Cord:Yes (attached)Shipping Method:FedEx Ground (Domestic) / USPS Priority, Ebay Standard Delivery (International)Shipping Weight (lbs):45 (24x20x20) 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_1516 (GS 9.3 (1516))

This is a reprint of an Audio Review from 1986! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

We offer for sale this Pre Audio Research SP11 on consignment basis FREQUENCY RESPONSE: High Level Input: ±1dB from 0.2Hz to 100kHz.-3dB below 0.1Hz and above 200kHz.Phono Input: ±.2dB of RIAA from 20Hz to 40kHz.±1dB of RIAA from 1.0Hz to 100kHz.DISTORTION (THD) Harmonic Distortion: Less than 0.005% at 2V RMS output, 5Hz to 20kHz(typically less than 0.001% at midband, phono or line input).Intermodulation Distortion: Less than 0.003% at 2V RMS outputNOISE AND HUM IHF weighted input, shorted: Output (reduced gain):6 µV (110 dB below nominal output).Input (high level): input equivalent to 3µV(110dB below 1V input).Phono: 0.15 µV equivalent input (76 dB below 1 mV input)GAIN At 1kHz, bypass mode: Phono input to tape output: 46dB(0.2V output from 1mV input).Phono input to master output: 75dB (0.175mV input to 1V output).High level input to main output: 29dB (36mV input to 1V output).INPUT IMPEDANCE Phono: Front panel selectable 47K, 100, 30, 10, 3 ohms.Phono Input Capacitance: 150pF at 10kHz.High Level: 20K ohms or higher, depending on switch functions.OUTPUT IMPEDANCE 250 ohm main, direct and reverse outputs.500 ohm tape output. Recommended load 60K ohm and 100pF (minimum 20Kohm, maximum 1000pF)OUTPUT POLARITY Tape outputs, direct out: non-inverting.Main outputs (2): selectable non-inverting or inverting.All outputs can be used simultaneously.MAXIMUM INPUTS Phono: 350mV RMS @ 1kHz, 1200mV RMS @ 10kHz(maximum duration 0.1 seconds, 6dB less if continuous).High level: 25V RMS.NOMINAL OUTPUTS Main outputs, direct, inverted 2V RMS from 1Hz to 100kHz.(80 V RMS maximum at 0.2% THD at 1 kHz into a 60 kOhm loadwith 2.85V RMS high level input).POWER REQUIREMENTS 95-135VAC 60Hz, 190-270VAC 50/60Hz, 130 Watts maximumOTHER Filter: Phono Subsonic High Pass @ 25Hz Rolloff 6dB/octave (to eliminate ringing)transitioning at 12dB/octave at 10Hz.Phono solo switchable on front panel.Controls (6): Gain, Level (to set the gain range), Balance,Mode, Input, Impedance.Switches (8): Tape monitor, Copy, Tape 1/2, Tape 1to2 / 2to1, Mute, Invert phase, Bypass, Filter.DIMENSIONS (Each frame is EIA Rack panel mounted) 19 (48cm) W x 5 ¼ (13.4cm) H x 10 ¼ (26cm) D.The handles extend 4.1 cm in front of the panel.The interconnect cable extends 10cm behind the rear of the chassis.TUBES: 2x theonex ecc882x sovtek 69222x Mil-spec 6h23n-ebWEIGHT SP-11: 6.4kgSP-11PS: 6.8kg *EU shipping available*

Audio Research SP-11 mk2 Im the second owner of this amp and must have had it about 20 years. For whatever reason, its been very little used throughout its life and it shows. It is in excellent condition. It was serviced by Dave Hunter in Nottinghamshire - who is an extremely qualified electrical engineer, and is a specialist in valve amps - both audio and guitar, and has all the ARC data. The report has been attached. I sent it for a general service as there was an issue with the mute/soft start circuit. All it needed was one low voltage capacitor changed. All the other capacitors are in perfect condition, as are the original Sovtek valves, all 6 of them. The amp is 100% original apart from the one cap change above. Most of the audio caps are REL teflon, so have huge life spans. The electrolytics are well within spec, so Dave recommended leaving as-is. Ill package both the amp and PSU in seperate boxes, both double boxed properly, and send by Parcelforce 48, tracked and signed for. It may take a day or two to get properly packed. Please let me know if you need full insurance, as that will cost a bit extra for the peace of mind. Note that this ARC is particularly noted for its excellent phono stage. Still a contender after all these years. It also has a separate gain control as well as volume attenuation which makes it quite flexible for matching to power amp of differing sensitivity. The unit is a 240V UK model, so the power outlets designed for the American market were blanked off from new. I doubt there is a better collectable example of an SP11 out there. One recent review here. https://www.tonepublications.com/old-school/audio-research-sp-11-preamplifier/ And this is my ARC SP11 reviewed by Alex Megann in 2007 against a more modern super amp. http://soundmovements.co.uk/diyaudio/RTP3_vs_SP-11.html

Audio Research SP-11 mk2 High End Vorverstärker Kein Originalverpackung vorhanden Technisch, EinwandfreiOptisch , Siehe Fotos -------------------------------------------------Fragen zum Klang Um Ihre und unsere Zeit nicht unnütz zu vergeuden, beantworten wir keine Fragen zum Klang, z.B. wie das Gerät sich mit dem Lautsprecher x und den Kabeln y verhält. Noch Fragen?Bitte klicken Sie rechts oben im Kasten Angaben zum Verkäufer auf den Punkt Verkäufer kontaktieren!----------------------------------Please, it is not fair to ask what is the lowest price,if hes going to buy the items we sell, then send us the proposal via eBay and not via news,if we believe that the offer sie affordable accept it !!!thank you,---------------------------------------------------Bitte, es ist nicht fair zu fragen, was ist der niedrigste Preis,wenn sie vor haben aus unsere Artikel sortiment ernsthaft zu kaufen , dann senden Sie uns den Preisvorschlag über eBay und nicht über Nachrichten,wenn wir glauben dass ihre Preisvorschlag interessant ist, dann akzeptieren wir es !!!danke. -----------------------Hallo, eine Rückgabe ist kein problem,zu beachten ist, die Geräte soll in der gleiche Zustand sein wie sie erhalen haden, ohne Technische Problemen!!!ohne Kratzer oder sonstigen Gebrauchsspuren!!!der Verpackung soll der Original und kein Neutral sein!!!die Versandkosten ( Versand und Rückversand) trägt der Käufer!!!bei weiteren Fragen , stehen wir gerne zu Verfühgung. die Rückgabe geht an, W&W AudioDe Reulver 977544RT EnschedeNL------------------------------------------Wir geben drei Monaten Garantie für unsere Gebrauchte Geräte bei Neugeräte geben wir die Volle Garantie Erfolgt der Verkauf in Kommission für eine Privatperson ist weder die Mehrwertsteuer ausweisbar noch eine Gewährleistung gegeben ----------------------------------------- ------------------------------------------------------Kaufabwicklung: Die Zahlung sollte innerhalb 4 Werktage abgeschlossen sein. Oder Käufer und Verkäufer haben sich anders geeinigt, so können Sie zum Beispiel den Artikel Kaufen, durch eine Anzahlung sichern und zu einem späteren Zeitpunkt zahlen. (Diesbezüglich bitte im Vorfeld zu klären!)------------------------------------------------ Ein Hinweis noch zum mitgelieferten Zubehör: Auch wenn im serienmäßigen Lieferumfang eventuell mehr Zubehör enthalten sein sollte wird lediglich das mitgeliefert was unter Mitgeliefertes Zubehör auch aufgeführt ist International bidders please ask the shipping price to your country before placing a bid! Wir bieten eventuell auch Inzahlungnahme/Tausch von/mit anderen Geräten an. Eine Finanzierung ist leider nicht. Noch irgendwelche Fragen? Kein Problem, schickt uns eine Mail und wir werden diese selbstverständlich so schnell wie möglich beantworten. Bevor sie jedoch die Fragen stellen lesen sie sich bitte zuerst den Beschreibungstext sorgfältig durch, viele Fragen beantworten sich dann erfahrungsgemäß von selbst. Der Verkauf erfolgt differenzbesteuert gem. §25a UStG, daher kann die Umsatzsteuer auf der Rechnung nicht separat ausgewiesen werden.