ADCOM GFP-565 Direct-Path Analog Preamplifier **See all pictures for condition details, specifications, and original brochure****Owners Manual available for free on the HiFiEngine website** This is a beautiful example of ADCOMs best preamp from the late 80s/early 90s. It is in good working order, and is ready to use in your system with your favorite power amplifier. To truly understand this units level of quality, you should read Gary A. Galos 1990 review of the GFP-565 for Stereophile magazine, (easily found using Google). It goes in-depth on the intricate workmanship and design detail that went into developing this preamp, and reviews the resulting sound quality. Needless to say, the results are excellent. Unit will be shipped fully insured and well packaged.

ADCOM GFP 565 - Great Condition, Fully tested, Upgraded Components A classic high quality preamplifier with extra attention and features including:New audio grade Nichicon electrolytic capacitors throughoutNew high grade film capacitors on the output stageTape buffer Op-amps replaced with OPA2134?s (no DC offset on the outputs) Phono preamp suitable for MM or MC (high output)Tone controls (with defeat)Balance control2 tape circuits (buffered)Direct coupled circuitryProcessor circuitTwo outputs (one direct, one capacitive)Headphone output This is a refined preamplifier where you can choose a simple signal path or take advantage of its full features. Works great with any power amplifier. All inputs, outputs, and switches have been tested to assure it is in great working condition. SpecificationsDescription:Output impedance (bypass, normal, and lab outputs): 100 ohms; Output level: 2.0V (rated), 10.0V (max); THD plus noise: 0.0025% (high-level), 0.009% (phono). IM distortion (SMPTE): 0.0025% (high-level), 0.0025% (phono). Frequency response (±0.5dB): 5Hz?90kHz (high-level), 5Hz?70kHz (phono). RIAA accuracy: 20Hz?20kHz ±0.1dB. Weighted S/N ratio: >100dB (high-level), >95dB (phono). Power consumption (230V AC/50?60Hz): 10W.Dimensions: 17 W by 12 9/16 D by 3¼ H. Weight: 11 lbs. QUALIFICATIONS OF EXPERT WHO WORKED ON THIS ITEM:Electronics technical credentials I have greater than twenty five years of work experience in the design, manufacture and test of complex transducers for domestic and international customers. This included developing and interpreting circuit schematics and performing thousands of hand soldered joints while using professional test equipment for circuit verifications. Additionally, I taught numerous electronics technicians in fine detail hand soldering, as well as critical cleaning and encapsulation techniques of the resulting circuits. Verification methods The work was performed and verified using the Adcom factory service manual which includes complete schematics. Signal generators, digital multimeters and an oscilloscope were used to verify correct voltages and waveforms. Subsequent to that, multiple listening tests were performed to assure each input and output functioned properly. Please see our photos.Not only are they part of our description, they are of the actual item you will receive. We gladly answer questions and/or supply additional photographs. We ask that you make your inquiries prior to bidding. SHIPPING AND CONDITIONS:All our offerings are carefully packed, but we advise our buyers to take out insurance if they wish.We require immediate payment upon selecting a Buy It Now item.We can arrange combined shipping if you contact us prior to bidding on your first item. For combined shipping, you must purchase everything you wish to combine with this item within 74 hours of the first purchase.Your address must be current with eBay.Please contact us if you have any concerns or questions. We try to make every transaction satisfying to all parties.

Stunning high performance reviews. Appears like new both functionally and cosmetically. Manual included Adcom Model GFP-565 Solid State High Performance Stereo Preamplifier - Mint Description Thank you for checking our listings. Please purchase with confidence.  Item:  Adcom Model GFP-565 Solid State High Performance Stereo Preamplifier Original retail price: $798 Estimated Production:  1990 Product Information The Adcom GFP-565 2-channel pre-amp/processor amplifier is designed to compete with any high-end pre-amps on the market. This unit offers a unique setup with three sets of outputs and loud, crisp surround performance for bypass, main outputs lab, and main normal that allow you to easily choose the voltage to provide to speakers and to control tones or, alternately, to enjoy an unfiltered bypass. They use a direct path, and linear gain circuitry within the device helps to further improve its sound purity and performance. In addition, there are six inputs provided on the GFP-565, including phono, CD, tuner, tape 1 and 2, and video/aux via cables. There are separate selector switches that are provided for listening and recording, and since two tape outputs are also included, tape copying in either direction is possible. The 565 does not have an infrasonic filter for the phono. The Acoma GFP-565 2-channel processor amplifier has extremely robust power amplifiers that are capable of operating at a very low impedance of 2 ohms and can manage difficult speaker loads thanks to its 20 rugged output transistors. It was designed around a triple Darlington configuration and uses no protection or current limiting circuitry other than the fuses itself in the DC supply voltage rails. This sound system could be considered monster speakers as they are very powerful, delivering a massive sound, yet have really balanced acoustics. They are rated at 300 watt output for 8 ohms (24.8 decibel watts), 450 watts into 4 ohms (23.5 decibel watts), 850 watts into 2 ohms (23.3 decibel watts), and all 20 hertz to 20 kilohertz at 0.02 percent. They have an impedance of 50,000 ohms and an input sensitivity of 2.15 volts for rated output. Their full output is greater than 106 decibels, their damping factor is greater than 1000, 8 ohms, 20 hertz to 20 kilohertz, and they have a dynamic headroom (at 4 ohms) of 1.6 decibels. The bypass outputs will let you use an external processing loop, and a mono switch and loudness contour help your sound bypass outputs, but the contour switch and its associated filter components are connected to a tap on the volume control, so these components and switch contacts are not in the signal path. Designed as a solid-state monoblock power system, it uses one very large, beer-can-sized capacitor. It also consists of a high-quality, X2-type snubber capacitor, which is installed across the AC input to reduce RF interference and reduce noise. This amp, even when driven hard and heated up close to maximum, shows no signs of distress. It should cool itself down quickly too. ADCOM made its name in the boom-box days of the ’80s with this type of speaker, offering a truly high-performance audio system for the mass market. They were leaders in developing semiconductor technology, which was accelerating along with fabrication technology. But it’s not just about volume. This sound system will please the purist audiophiles as well as all those who require the abilities of full-featured speakers, such as electric guitarists. The ADCOM GFP-565 2-channel audio system will offer years of quality use in its clean, solid, and secure system. Weight: 11lbs Dimensions: 17W x 12-9/16D x 3-1/4H Condition: Appears like new both functionally and cosmetically. Manual included. No Box Shipping Shipping Note: We usually ship same business day. Our priority is the safe arrival of your item. We strive to ensure all parcels are properly packaged using the correct size box, bubble wrap and peanuts. As a result we may include a small handling fee for packaging and material. This is incorporated in your quoted price. Thank you for understanding and please do not penalize us in feedback for taking care in the shipping of your item. Chrome Industries will ship your item via UPS or USPS. Items with free shipping will sometimes ship via the slower USPS 1st Class Mail. Please do not penalize us in feedback for delays when choosing this option. International Buyers: Due to loss and theft. USPS Express Mail and USPS Global Priority Mail are typically used for international orders. This is for your protection and ours. Note to International Buyers: If choosing 1st class international postage, the post office does not provide tracking information once the item leaves the US. Therefore the buyer is responsible for providing the tracking number to their country postal service for additional tracking information. Customs, duties & tax responsibilities: International buyers are responsible for customs tax & fees and may experience longer shipping times due to customs-related delays. Help with customs information may be found from the shipping carrier?s website site. International Buyers: We will not ship items internationally at a declared value less than purchase price. This is for coverage protection against shipping damage or loss. Thank you. Terms of Sale Please be sure to confirm with payment within 3 business days. We will process and ship your order within 1 business day after confirmation of your payment. Contact Us Please be sure to contact us if there is an issue with the transaction. We believe most issues can be professionally resolved. Thank you. Customer Service Information: Chrome Industries N.Y. 300+ Listing Templates! Auctiva gets you noticed! The complete eBay Selling Solution. Track Page Views WithAuctivas Counter

Pound for pound, dollar for dollar this vintage set of highly collectible Adcom Mono Block amplifiers give more performance and raw power, than most amps triple or more than their cost. Very rare and harder and harder to find, this Adcom Stereo GFA 565 Mono Block Amplifier set, 300 watts per channel into 8ohms, comes complete with Hoppe’s Brain driver board and capacitor upgrade and overhaul, correcting the eventual leaky capacitor problem. The amps come in original factory boxes, with instructions manual. Cosmetically rated 8 or 9 depending on how picky you are, very minor wear and working condition rated 10. Runs quietly and perfectly and presently easily driving a $20,000 pair of Carver Amazing Line Source Speakers. Shipping on 2 Amplifier boxes by UPS will be approximately $65 each, final shipping price will be determined and sent before final mailing. Items are in perfect working condition, Shipping fragile electronics can sometimes loosen wires etc., I will not be responsible for shipping damage, but all items will be fully insured and tracked with shipper, who more than likely will be UPS.

Lot of seven ADCOM brochures and ads.Good condition bright color a few wrinkled corners. Your items will be packed very well and shipped promptly.Always glad to answer any questions.Thanks for looking!

Pound for pound, dollar for dollar this vintage set of highly collectible Adcom Mono Block amplifiers give more performance and raw power, than most amps triple or more than their cost. Very rare and harder and harder to find, this Adcom Stereo GFA 565 Mono Block Amplifier set, 300 watts per channel into 8ohms, comes complete with Hoppe’s Brain driver board and capacitor upgrade and overhaul, correcting the eventual leaky capacitor problem. The amps come in original factory boxes, with instructions manual. Cosmetically rated 8 or 9 depending on how picky you are, very minor wear and working condition rated 10. Runs quietly and perfectly and presently easily driving a $20,000 pair of Carver Amazing Line Source Speakers. Shipping on 2 Amplifier boxes by UPS will be approximately $65 each, final shipping price will be determined and sent before final mailing. Items are in perfect working condition, Shipping fragile electronics can sometimes loosen wires etc., I will not be responsible for shipping damage, but all items will be fully insured and tracked with shipper, who more than likely will be UPS.

Adcom GFA565 Monoblock (Defekt). Adcom GFA565, leider defekt!Am Anfang ihrer Leidensgeschichte spielte sie mal und spielte mal nicht. Mittlerweile spielt sie leider gar nicht mehr.Optisch in gutem Zustand und wurde mit einer WBT Chinch (RCA) Buchse optimiert, was direkt deutlich zu einem verbessertem Sound beitrug.Wer sich mit Reparaturen von solchen Verstärkern auskennt, wird diesen Boliden sicherlich wieder zu dauerhaftem Klang verhelfen können! Der Schaltplan wird mitgeliefert!HINWEIS: Insgesamt verkaufe ich 4 von diesen Monoblöcken wovon einer defekt ist (leider dieser hier). Wenn Sie Interesse an allen oder auch nur an 2 Stk. haben, bitte ich Sie mich anzuschreiben! info(et)benmoto.deAlternativ darf sich auch gerne jemand melden der mir das gute Stück wieder zu einem fairen Preis instand setzt!Privatverkauf, keine Garantie und keine Rücknahme.

Adcom GFA565 Monoblock (Defekt). Adcom GFA565, leider defekt!Am Anfang ihrer Leidensgeschichte spielte sie mal und spielte mal nicht. Mittlerweile spielt sie leider gar nicht mehr.Optisch in gutem Zustand und wurde mit einer WBT Chinch (RCA) Buchse optimiert, was direkt deutlich zu einem verbessertem Sound beitrug.Wer sich mit Reparaturen von solchen Verstärkern auskennt, wird diesen Boliden sicherlich wieder zu dauerhaftem Klang verhelfen können! Der Schaltplan wird mitgeliefert!HINWEIS: Insgesamt verkaufe ich 4 von diesen Monoblöcken wovon einer defekt ist (leider dieser hier). Wenn Sie Interesse an allen oder auch nur an 2 Stk. haben, bitte ich Sie mich anzuschreiben! info(et)benmoto.deAlternativ darf sich auch gerne jemand melden der mir das gute Stück wieder zu einem fairen Preis instand setzt!Privatverkauf, keine Garantie und keine Rücknahme.

Adcom GFA565 Monoamplifiere. Die Endstufe kann mit vorheriger Terminvereinbarung gerne zur Probe gehört werden.Über die klanglichen Qualitäten der Adcom Monoblöcke brauche ich dem Kenner ja nichts zu erklären.Die “alten RCA (Cinch) Eingangsbuchsen wurden mit WBT Next-Generation Buchsen Aufgewertet. Diese Maßnahme war sofort deutlich hörbar. Das sowieso schon tolle Klangbild wurde dadurch hörbar luftiger und harmonischer.Sollten noch sinnvolle Fragen aufkommen, beantworte ich diese gerne.“Technische SpezifikationenSolid-State-Monoblock-Leistungsverstärker. Nennausgangsleistung:300 W an 8 Ohm (24,8 dBW),450 W an 4 Ohm (23,5 dBW),850 W an 2 Ohm (23,3 dBW),alle 20 Hz–20 kHz bei 0,02 % THD.Das sollte für die meisten Lautsprecher ausreichend sein !!!HINWEIS: Insgesamt verkaufe ich 4 von diesen Monoblöcken wovon einer defekt ist (nicht dieser hier). Wenn Sie Interesse an allen oder z.B. auch an 2 Stk. haben, bitte ich Sie mich anzuschreiben! info(et)benmoto.de Bezahlung auch per PayPal (Freunde), Vorabüberweisung oder Bar bei Abholung möglichPrivatverkauf, keine Garantie und keine Rücknahme.

ADCOM GFP-565 Stereo Preamplifier Great Condition with Box and inserts. Any questions please feel free to message me.