A pair of ADCOM GFA-565 Monoblocks (Power House Amplifiers) (Famous) If you want to save a bundle on these amps contact me using the blue letters on the last picture Beautiful, Better Than New Inside THE PRIZE Here is another fine offering from the audio labs of Morris Electronic Repair Boutique These ADCOM GFA-565 Monoblocks is in Mint condition, which has been completely refurbished. This is a very rare classic. At 350 Watts / 8 This baby will not only light up your Wilson Audio Sophia Series 3, but will power any speaker in the world! At 450 Watts /4 or 850 Watts / 2 continuous, it will handle the most demanding loads. The clarity, musical definition and sound stage will literally speaking “ blow you away”!! You are not going to find many of these around, for the lucky people that own them keep them! The design and power is second to none. This is a very HIGH CURRENT amplifier, with a combined rail capacitance of 70.000 uf , gives lots of head room. These 565s have a time delay circuitry (soft start) to apply the bias voltage after all the amplification circuits are up to speed, eliminating the speaker thump on power up, and also to protect your speakers in case of circuit issues. I personally would put these 565s up against any of the big boys like Krell - McIntosh - Jeff Rowland - Classe Audio, PS Audio etc. It will hold it’s own, if not easily surpass. This amplifier is the pinnacle of audiophile euphoria. BUT WAIT THERE’S MORE SOMETHING NEW: There is a BIG DIFFERENCE with these 565s from the original. The driver PCB are brand new double layered board. ALL the components on the driver PCB are brand new, 1% audio grade components from US mfg. Vishay, kemet etc. (very expensive) The driver heat sinks are enlarged from original to dissipate the heat more effectively. Everything on the PCB has been upgraded to the highest audio grade component’s to give the best low noise sound reproduction possible. Plus expect to get a minimum of 30 years service from this refurbished amplifier, before any degradation of components. I am a one man shop, with 30 years as a electronic tech, so each piece of high quality audio equipment gets my personal attention, of which I repair, clean, adjust, and inspect everything as if I were keeping for my own. I have personally been completely through the internals of this GFA-565 (as you can see by the pictures) insuring everything is to factory specs. I have many exhausting man hours in the refurbishing of this amplifier and with populating the new driver PCB with all brand new components. Because this amplifier was so special, I gave it extra care. I leave no stone unturned. So you can buy with confidence knowing you are going to receive two very high quality amplifier’s in perfect condition electronically. This unit has undergone hours of testing and burn in under load, driven by a Harman Kardon CD 491 player into a Harmon Kardon 825 preamp into Paradigm B/P Espirit 300 w Towers. The externals are in better than new condition. The driver board is populated with all new audio grade 1% tolerant components. The bias voltage was adjusted to 23.5 mV.The four electrolytic 47uf /100wvdc are new on the output modules and have been upgraded to 100 uF / 160 wvdc.All the caps on the soft start board are new. The S/Ns# are 032200 & 011214283 THD is .002% which is incredibly low! Plus at any frequency it is less than .02%The DC offset voltage at the speaker terminals is .2mV (perfect)These units draw .8 amp’s at 115vac per unit at idle.These 565s have been retrofitted with IEC power receptacles so you can purchase any after market power cord and plug in. But they will come with the standard IEC power cords. Please Note: I only ship in the US. No international shipping! As always I pack everything with the best of materials, so as to thwart the gorilla UPS handlers. It will arrive alive and unscathed. The service manual & owner manual will be included (reproduced from original) along with amplifier spec sheets on each amp after testing. And will carry a one year iron clad warranty against all parts & labor and I will pay the shipping both ways in the unlikely event an issue should occur. Thank you, for reading all the verbiage, for this is the (cream of the crop)!! Fantastic Powerhouse Amplifier in very Beautiful condition. Any issues you should have I take care of them, Pronto, Period! “ No If’s, And’s or But’s”. This is why I maintain a 100% positive feedback. I answer all submitted questions.

TWO ADCOM GFA-565s mono block Power Amplifiers - both were serviced and recapped by Just Audio in Baltimore Md (before covid) - Used in good working order with minor cosmetic imperfections - they are in use and ready for demo - local pick up only

Adcom GFA-565se monoblock power amplifiers briefly used for several weeks in a commercial recording studio location. Replacement is due to changing to different speakers. Pricing is per unit, two are currently available The GFA-565se high power amplifier is capable of effortlessly driving a wide variety of loudspeakers, even those with exceptionally low impedances. It excels in maintaining high-power output consistently, even when faced with reactive impedances. Meticulous attention was given to ensure that the amplifier’s distortion remains minimal, especially when dealing with these complex loads, where the phase differences between voltage and current are significant.The GFA-565se incorporates an impressively robust power supply, featuring a generously sized transformer that powers a reservoir of 72,000uF filter capacitance. This setup ensures a substantial reserve of power capability. The transformer itself was purposefully engineered to provide exceptional regulation, guaranteeing unwavering voltages regardless of the amplifier’s power requirements.Notably, the GFA-565 possesses the ability to amplify DC signals and is unrestricted in its capacity to deliver energy across low-frequency and peak-bass ranges. Its gold-plated brass RCA input jacks with Teflon insulators exemplify the amplifier’s commitment to high quality.Additionally, the high power audio amplifier features a front-panel LED indicator alerts users to thermal overload conditions, enhancing the amplifier’s safety features. - Adcom