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.

Audio Research SP-9 Hybrid Tube/Solid State Stereo Preamplifier. Excellent phono section, detailed, transparent, and dynamic. Sounds great, check out the reviews. Original manual, four extra 6DJ8 tubes. I dont have the original box but will pro pack to insure safe arrival.

Audio Research SP-9 Hybrid Tube/Solid State Stereo Preamplifier. Excellent phono section, detailed, transparent, and dynamic. Sounds great, check out the reviews. Original manual, four extra 6DJ8 tubes. I dont have the original box but will pro pack to insure safe arrival.

Removed from a working system that was being upgraded. Be sure and check out my other auctions for other AV equipment.

Audio Research SP-9 Hybrid Tube/Solid State Stereo Preamplifier. Excellent phono section, detailed, transparent, and dynamic. Sounds great, check out the reviews. Original manual, four extra 6DJ8 tubes. I dont have the original box but will pro pack to insure safe arrival.

Removed from a working system that was being upgraded. Be sure and check out my other auctions for other AV equipment.

Audio Research SP3-A1 Preamplifier One Owner, Gold Front Absolutely Mint Condition Selling my audio system of 40+ years. Here is the Preamplifier that I purchased around 1976 from Paul Heath Audio here in Rochester, NY. It was used with a Linn Sondek turntable and Quad ESL57 speakers to give wonderful female voices and guitar strings. It was stored in a closet for most of those years while the kids were growing up.Note that all the electrolytic capacitors are original. I recommend that you either leave power on all the time or slowly bring up the power with a Variac to preserve the capacitora dn the tube filaments. It still has the Telefunken tubes that I installed soon after purchase, and they still measure good on my TV7-D/U Tube Tester. Back then the Telefunkens were acclaimed to be the best, and I never had reason to change them. I spent most of the day today measuring and studying the tubes, as follows........ TUBE MANUFACTURE TYPE SYMBOL DATE CODE Gm V1 Telefunken 12AX7 Bottom Diamond B9014201 56/52 V2 Telefunken 12AX7 Bottom Diamond B9014201 52/52 V3 Telefunken 12AU7 B-PC-28 106/98 V4 Telefunken 12AX7 Bottom Diamond B9014201 45/54 V5 Telefunken 12AX7 Bottom Diamond B9014201 50/50 V6 Telefunken 12AU7 B-PC-28 100/100 V7 Telefunken 12AX7 B0BA-01 51/50 V8 Telefunken 12AX7 B-OB-01 46/52 They are all Telefunkens2 Cathode Followers are 12AU7 for lower output impedance. It was common back then.4 of the tubes have the Diamond on the bottom. and their date code 4th digit places their date of manufacture as 1964 and made in BerlinGm (Transcconductance) was measured on a calibrated TV7-D/U. Minimum for the 12AX7 is On these Preamps the rear panel only says SP3, and you have to look inside for the sticker below the transformer to see the A-1 label. Cosmetically the unit id truly mint. No scratches anywhere, showing how well it was cared for. For large items like this Fedex Ground is usually cheaper than USPS.

Description of itemThank you for visiting! Our shop is 100% Authentic item. If you have any questions, please be free to ask us.  Have a great shopping on ebay! Paymentwe accept payment only through ebay Managed Payment. Shipping-Japan Post: 5-20 days to arrive -DHL: 5-10 days to arrival *We will ship the item by Japan post or DHL.  If you need expedited shipping, please let me know. I will ask you about extra payment.  Depending on the size and weight after packing the items, The shipping method may change depending on your location. **If you live in a remote area, We might ask extra charge for intenrational shipping. Please contact us for additional charges Shipping is only available to the address registered on ebay. Please note that any address not registered in ebay is not acceptable to ship. Shipping is available from Monday to Friday. **If you live in a remote area, We might ask extra charge for intenrational shipping. Weekends are not available because post office is closed.Term of sale-Return We accept product return within 30days from delivery date but product should be in original position and not in damaged condition,the return shipping charges will be buyer responsibility. -International Buyers - Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. 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.

This Audio Research SP-5 preamplifier is a top-of-the-line product perfect for any Hi-Fi audio enthusiast. Its six inputs and two outputs, both RCA, make it easy to connect to multiple devices and enjoy high-quality sound. Includes phono stage. The silver color and sleek design of this model make it an elegant addition to any home audio setup. With brand recognition and a model thats well-known for its quality, this Audio Research preamp is a must-have for serious audiophiles. Compatible with stereo L/R RCA audio inputs, this two-channel preamp offers superior sound and performance. Its quality and sound are outstanding, making it a versatile addition to any audio setup. Input impedancePhono : 50k ?Tape Tuner, Aux1/2 : 50k ?* Built-in pre-amplifier MCP-1 availablePhono Input Capacitance200 pf Normal* Can be changed to any value over 50 pf.GainPhono amp:36dBHighlevel amp:24dBMax InputPhono amp:150mV(1kHz)Highlevel amp : Overload proofMaximum power output10VOutput impedance50 ?Pwer105 V ~ 120 V AC, 50Hz/60HzPower consumption20WExternal dimensionsWidth 483x Height 89x Depth 210 mm(excluding handles, terminals, etc.)

Audio Research SP-9 Hybrid Tube/Solid State Stereo Preamplifier. Excellent phono section, detailed, transparent, and dynamic. Sounds great, check out the reviews. Original manual, four extra 6DJ8 tubes. I dont have the original box but will pro pack to insure safe arrival.

Removed from a working system that was being upgraded. Be sure and check out my other auctions for other AV equipment.

Audio Research SP-9 Hybrid Tube/Solid State Stereo Preamplifier. Excellent phono section, detailed, transparent, and dynamic. Sounds great, check out the reviews. Original manual, four extra 6DJ8 tubes. I dont have the original box but will pro pack to insure safe arrival.

Jahrgang: Ab 1991 Seriennummer: 67337044 Zustand: Gebraucht, mit optisch feinsten Alters- und Gebrauchsspuren. Technisch ist das Gerät defekt. Ich bin der zweite Besitzer, der Vorbesitzer hat das Gerät vor etwa zehn Jahren revidieren lassen, bei dieser Revision wurden die Relais ersetzt, das Balance-Potentiometer überbrückt, und das Volume-Potentiometer gegen ein besseres von ALPS ausgetauscht. Der Besitzer besass eine Firma für Oberflächenveredelung, somit hat er die Frontplatte eloxiert, und dann graviert. Es handelt sich um die originale Front, nun einfach mit einer perfekten Gravur. Um den September 2023 begann ein Kanal merklich leiser zu spielen, und dann durch das Relais bei leisen Papieren teilweise aus zu setzen. Das Gerät ging dann in die Revision zum Techniker, wie meist sind diese massiv überlastet. Irgendwie hat er dann rein geguckt, jedoch wurde die Arbeit nicht fertiggestellt. Habe dann den Pre zu H-J. S. verfrachtet, welcher leider nicht mehr die Ressourcen hatte, somit habe ich die SP-9 zurück geholt. S. riet von einer Inbetriebnahme ohne vorhergehende Durchsicht ab. Da ich noch über weitere AR Preamps verfüge, lasse ich es somit nun bleiben. Der Verkauf erfolgt als zu 100% DEFEKT. Sonstiges: Sehr viele Informationen zu diesem Weltklasse - Vorverstärker finden sich auf dem WWW. Für gab es nie einen Grund, dieses Gerät aus zu tauschen, leider lässt es mein Arbeitspensum im Moment nicht zu, noch Stunden des Umherfahrens zu investieren, da höre ich lieber Musik :-) Das originale Manual, der Schaltplan und die Bauteile zur Anpassung des Phono-Eingang liegen bei. 220-Volt - Version. Biete / Kaufe nur, wenn du den Text lückenlos verstanden hast. Danke. ACHTUNG: Der Versand erfolgt aus der Schweiz. Bitte seien Sie sich bewusst, dass eventuelle Import - resp. Zollgebühren anfallen können. Der Versand erfolgt ausnahmslos mit Trackingnummer. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. We do not mark merchandise values below value or mark merchandise values below value or mark items as gifts - Governmental regulations prohibit such behavior. Sie können das Objekt an eine Zusendeadresse in der Schweiz senden lassen, so lassen sich die Versandkosten merklich senken, obwohl auch hier der Versand ausnahmslos mit einer Sendeverfolgung erfolgt. Eine Abholung ist möglich und erwünscht, diese jedoch ausnahmslos zwingend innert zehn Tagen nach Zuschlag.

Audio Research SP-14 hybrid solid state / tube design. A single tube is used in the phono section. Stereophile recommended.This preamplifier is in excellent condition from a non-smoking environment. All functions work as new and the sound is very high quality. RCA Inputs:- Phono- CD- Tuner- Video- Spare- Tape 1- Tape 2RCA Outputs:- Recorder 1- Recorder 2- Main 1- Main 2Outputs:- 2 Switched- 1 Unswitched

This Advertisement is a reprint from 1972. 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 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.

DescriptionThe item has been tested and is functioning properly without any issues. ShippingWe always send the item with a tracking number. So please place an order without any concern on delivery. You can always track the delivery status.Shipping is only available to the address registered in eBay. If you want us to send another address, please change your address on eBay and then place an order.Shipping is available from Monday to Friday. Weekends are not available because freight (shipping) companies are closed.We do not mark merchandise values below value or mark items as “gifts” – Japan, US and International government regulations prohibit such behavior.If your address is in the remote areas defined by the freight (shipping) company, please pay the additional shipping fees with PayPal.About Importers ObligationImport duties, taxes, and charges are not included in the item price or shipping cost. 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. Thank you for your understanding.

This Advertisement is a reprint from 1972. 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

For sale is one Audio Research SP-8 stereo tube preamplifier in excellent condition that sounds fantastic. It comes with the optional Audio Research WC-4 wood case which is hard to find. If you’re a vinyl enthusiast, the SP-8 has an outstanding phono sage. This is a classic high-end tube preamp from the 1980s that is still very highly regarded by audiophiles for its clarity and sound purity. It has inputs for Phono, Tape, Tuner, Aux 1, Aux 2. Tubes used: Five 12AX7s, two 6DJ8/6922s, one 12BH7. All tubes in the preamp are American-made and test good on a calibrated Bitmatic mutual conductance tube tester (computerized 118/B Cardmatic). Controls and sockets have been cleaned, and it works perfectly. See photos of flyer for comprehensive specs. This is an awesome tube preamp that sounds fantastic. It is pickup only in Riverside, CA, because I have had too many problems shipping delicate electronics like this. NOTE: Subject to prior sale-- C.L. & F.B.

Biete hier aus einer Inzahlungnahme eine Audio Research SP-11 MK2 High End Vorstufe an.Das Gerät befindet sich in einem guten Zustand, wenn man das Alter berücksichtigt. Normal 0 21 false false false DE X-NONE X-NONE <p><a href=http://feedback.supreme.de target=_blank>Widget erstellen oder Farben anpassen.</a></p> <a href=http://logo.supreme.de target=_blank><img src=http://storage.supremeauction.com/flash/widgets/widgetworld/img/saWidgetsFooterLogo.png border=0 /></a> <div style=clear: left;> </div> supremeauctiononlinesoftware.widgets.FeedbackWidgetBasic.swf

Physical condition - excellent, there is a little bit of some tape residue on the back that I will clean off before sending Electrical condition - Unit is working just as it, no issues. I have recently acquired a very large collection of high-end audio from a world renowned collector and restoration specialist. I will be listing a part of it over the next week and then a larger part within a month. Please keep an eye on my listings for many great opportunities to find scarce pieces.

Audio Research Hi Def SP-4 Stereo Pre Amplifier - Excellent w/original box. Powers up and tests good. Original box has original Styrofoam. Will ship in original box or put in a second box if you are one to collect the original boxes. Also comes with a copy of the original users manual - not shown.

This Audio Research SP-6B Preamplifier has been tested and is in working condition. This came to me in an estate. I don’t know any history of this preamp. The condition is used/good. Please see pictures. I only ship ground to the 48 States. Signature required delivery. I do not guarantee any vintage electronic equipment. This could last for years to come or could need immediate servicing in the near future. When purchasing 30-40 year old electronics this is the inherent risk we all take. ALL SALES ARE FINAL, NO RETURNS.

This Audio Research SP-6B Preamplifier has been tested and is in working condition. This came to me in an estate. I don’t know any history of this preamp. The condition is used/good. Please see pictures. I only ship ground to the 48 States. Signature required delivery. I do not guarantee any vintage electronic equipment. This could last for years to come or could need immediate servicing in the near future. When purchasing 30-40 year old electronics this is the inherent risk we all take. ALL SALES ARE FINAL, NO RETURNS.