~VINTAGE~ AUDIO RESEARCH MODEL SP-3 A-1 TUBE PREAMPLIFIER w/Manual Very Good Condition The unit has been thoroughly Cleaned and tested. One of the QUAD filter capacitors has been replaced. World Class audio quality. 12aX7s Mixture if Siemens, GE and National tubes. Unit has BNC inputs with RCA adapters,see back panel picture. Frequency response: 10Hz to 30kHz Total harmonic distortion: 0.005% Signal to noise ratio: 70dB (MM), 90dB (line) Channel separation: 30dB (line) Normal 0 false false false EN-US X-NONE X-NONE Attention: We Ship UPS and USPS, depending on the item. Please, always view pics closely before bidding ! We are a reputable Stereo Store with 50 years experience. Professionally Serviced, Cleaned and Tested by our Technicians. All items are shipped fully Insured. World Class packaging guaranteed to arrive as shown in the pictures. Check the rates for your city and country. We ship to USA states directly. If you live in another country please read below for shipping details. ------------------------------------------------------------- International Shipping is available through Ebay. If you live outside of the USA, Ebay can estimate the extra charge To your postal code. We can not determine that for you!!!. We will ship to the Ebay Hub in Illinois and then they repack and handle customs forms and charge for their service on top of our price to ship to your country.

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

AUDIO RESEARCH SP-3 VACUUM TUBE AMPLIFIER IN GOOD WORKING ORDER USED FROM JAPAN Description ?? Condition: Used Please confirm the condition by reviewing the images carefully. ?? there are some scratches and dirt. ?? Please feel free to ask any questions. We will respond within 48 hours. The product description may use automatic translation by AI. There may be some minor translation errors or unnatural parts. If any questions arise due to this, please be sure to ask before making a purchase. We will make every effort to address any questions before the purchase. Shipping ?? Items would generally be dispatched within 6 working days. ?? Most items will be shipped using FeDex, DHL or UPS which is reliable and arrives quickly. ?? Please note that for special items, or depending on the destination country, different shipping methods may be used. ?? Depending on the country, certain items such as watches and sunglasses may experience delays during customs clearance. Please be aware of this in advance. ?? As liquids are difficult to export, ink will not be included with pens, etc. Even if there are ink bottles in the images, the contents will be removed before shipping. International Buyers - Please Note: ?? 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/buying. ?? These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges. ?? The customs declaration amount will be based on the selling price on eBay. It is illegal to underdeclare the declared amount, a practice commonly referred to as undervaluing, so it must not be done under any circumstances. Similarly, declaring items as gifts is also not permitted.

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 has been thoroughly gone through by a qualified technician and sound is fantastic. Looks almost like new as well. This is used not new so obviously there are signs of use but nothing serious. If youve never heard one, you will be pleasantly surprised. Shipping will include handling and materials. No post office boxes and shipping to lower USA only. Thank you for looking.

10/10 condition. All strong Sovtek tubes. Works perfectly. I replaced all electrolytic caps, the main film coupling caps, all large wattage carbon comp resistors, the power lamp, all diodes and zeners, the volume control direct from ARC for $80, and cleaned all controls.

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

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 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

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

Item DescriptionOperation confirmed audio research SP-3 vacuum tube amplifier Please purchase only if you understand this. Please refrain from purchasing if you are looking for a complete item or if you are nervous. -The color and texture of the published image may differ from the actual product due to shooting, monitor environment, etc.ShippingDomestic Shipping(United States)Expedited shippingFreeShippingInternational ShippingExpedited International Flat Rate ShippingShipping Cost : $0.00Europe, Asia, Canada, United Kingdom, China, Germany, FranceStandard International Flat Rate ShippingShipping Cost : $26.00AustraliaPayment eBay Managed PaymentOther Term International Buyers Please Note: 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/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up -?do not confuse them for additional shipping charges. We do not mark merchandise values below value or mark items as gifts - US and International government regulations prohibit such behavior.

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 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

AUDIO Research SP-3 Vacuum Tube Amplifier Working ConfirmedDescriptionPlease check the picture.Shipping Fedex or DHL.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. Thank you for your understanding.

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 Advertisement is a reprint from 2000. 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 2000. 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 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 Advertisement is a reprint from 2000. 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 original advertisement from 1975. This would look amazing in a frame! The very rare and legendary tube preamp from Audio Research that led to many more great tube Preamps and Amps in later years. You will NOT be dissapointed with this Advertisement! Many more Audio Research Ads and Reviews on my Ebay store! -Each Page is 8.5 by 11 Please check out my new Vintage Audio Web Site, www.VintageAudioArchive.com -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.

Selling my vintage audio research sp-3 tube preamp. This is an upgraded version with separate power supply and connection cord. Ready to plug and play Works 100% Has unreal sound quality. Great imaging and soundstage. Tube phono section. Etc See all pics. Best sounding preamp I’ve owned. Does include original cages also. Fit great. Just not the sturdiest ones I’ve seen. Local pickup only I do not want to risk shipping with cages and delicate tubes Located in St. Louis MO. Can meet within 50 miles Please email with any questions or offers. Thanks

Wenn Sie von dem US Marktplatz bestellen, können für die Pakete Steuern und Zollgebühren anfallen, die der Käufer später tragen muss.Audio research SP-3,LS25 Audiophiler Vorverstärker Amp Ad 2000,1 Page Artikel +Das Datenblatt dieses Produkts wurde ursprünglich auf Englisch verfasst. Unten finden Sie eine automatische Übersetzung ins Deutsche. Sollten Sie irgendwelche Fragen haben, kontaktieren Sie uns.     Diese Anzeige ist ein Nachdruck aus dem Jahr 2000. Es befindet sich auf glänzendem Fotopapier und ist in ausgezeichnetem Zustand! Das Bild ist das Bild des tatsächlichen Artikels. Es ist ein wunderschönes Stück Audiogeschichte. Ich habe TAUSENDE weitere von allen großen Audiomarken von 1950 bis heute. ---Zufriedenheit ist bei AV Archives GARANTIERT! Schauen Sie sich mein Feedback für zufriedene Kunden an! Ich bin seit 2007 geöffnet und habe TAUSENDE Anzeigen, Rezensionen und Broschüren an zufriedene Kunden verkauft. ---Jede Seite ist 8,5 x 11 Zoll groß, sofern im Titel nichts anderes angegeben ist. ---Einseitige, einseitige Anzeigen, sofern im Titel nichts anderes angegeben ist. ---Diese Anzeigen eignen sich perfekt zum Einrahmen und Platzieren in Ihrem Audioraum. ---Ich habe einen RIESEN Schallplattenladen mit Tausenden von Sammlerstücken und VIELE Erstpressungen/Audiophile-LPs. Klicken Sie einfach links unter den Kategorien auf den Link „Mein Schallplattenladen“. Wenn Sie spezielle Fragen haben, senden Sie mir bitte eine E-Mail. In der Regel erhalten Sie innerhalb von 4 Stunden eine Antwort von mir. DANKE! Gregor     Diese Anzeige ist ein Nachdruck aus dem Jahr 2000. Es befindet sich auf glänzendem Fotopapier und ist in ausgezeichnetem Zustand! Das Bild ist das Bild des tatsächlichen Artikels. Es ist ein wunderschönes Stück Audiogeschichte. Ich habe TAUSENDE weitere von allen großen Audiomarken von 1950 bis heute. ---Zufriedenheit ist bei AV Archives GARANTIERT! Schauen Sie sich mein Feedback für zufriedene Kunden an! Ich bin seit 2007 geöffnet und habe TAUSENDE Anzeigen, Rezensionen und Broschüren an zufriedene Kunden verkauft. ---Ich habe einen RIESEN Schallplattenladen mit Tausenden von Sammlerstücken und VIELE Erstpressungen/Audiophile-LPs. Klicken Sie einfach links unter den Kategorien auf den Link „Mein Schallplattenladen“. Wenn Sie spezielle Fragen haben, senden Sie mir bitte eine E-Mail. MPN Does Not Apply Brand audio research Type Paper Compatible Brand audio research UPC Does not apply