The Adcom GFA was designed for Adcom by Nelson Pass leveraging the International Rectifier HexFet T03 output devices. Nelson Pass designed these. I am considering changing(up grading)to Adcom GFA amp and GFP pre. I currently am using a Parasound HCAa and. ADCOM GFA – Power amplifier overview and full product specs on CNET.

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Notice the pin-connector on the RCA input! I measured WPC with both channels driven into 8 ohms, just before clipping. Amplifier Input Channel Qty.

Skip to main content. Around the power FET’s It looks like something may have been spilled.

ADCOM GFA-5802 – Power amplifier

Like a motor with a huge flywheel. Here’s how to get the most out of your AirPods, and a few things you may not know. Show More Show Less. What’s the best streaming music app? Online by Adclm Zhou 4 days ago. The service manual will also tell you how to adjust the DC offset.

Discussion threads can be closed at any time at our discretion. This amplifier is a keeper and built to last. This top-of-the-line watt amp rivals the mighty Krell which I also own in its clean power and transparent sound.

I always replace power switches and relays just in case they are corroded over time. Fortunately, these devices are still available, addom I bought of them, built a jig to match them, and sorted out pairs that match to less than 1mV.


Leave a Reply Cancel reply. This Adcom does not need a complete restoration at this point but use some deoxit on the rear connectors while you have the amp accessible.

Adcom GFA-5802 Amplifiers

Very happy with this product. These should hold up much better. Here are the input boards, which contain the RCA and XLR input connectors, along with the circuitry for the first stage of the amp. You may also like. You will find that this Adcom GFA amplifier runs very warm even at idle. The heat ages the capacitors prematurely, so I have installed high-endurance C types throughout. Plenty of protection built into the amp, so you can run virtually any speaker, no matter how demanding. Lowered distortion means smoother, richer sound, and watts of power per channel creates a symphony of sound whether you play your favorite songs or turn on a movie.

Headphones by Steve Guttenberg 2 days ago.

Its a well built amp. Be careful as they are easy to strip. The king of the budget sound bars The king of the budget sound bars by Ty Pendlebury. There’s more to the tiny wireless earbuds than meets the eye. But its price is 5x less! Its a nice unit with lots of power. This Adcom GFA power amplifier is in fairly good cosmetic condition.

Spotify, Apple Music and more, compared What’s the best streaming gf-5802 app? Slick, sleek, and stylish, the device looks right at home in your media room. The amp is very high damping factor and very high current. Trending Price New. It was manufactured around People who bought this also bought.


Bluetooth Audio Amplifier, 2-Ch. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. The lowest-priced item that has been used or worn previously. In particular, the adcoj 16V power-supply filters for the high-voltage supply are known to die and cause a loss of bass response. Minimalist in circuit design, with only three gain stages, but maximalist in execution.

Adcom GFA Amplifiers user reviews : out of 5 – 51 reviews –

Adcom uses hex screws and they can be difficult to break loose. We delete comments that violate gfa–5802 policywhich we encourage you to read. Ratings and Reviews Write a review.

Show less Show more. Alcohol may affect the thermal grease. A new version of HDMI is coming, and there are some big changes — including support for resolutions up to 10K as well as a new cable. They have a wonderfully flat curve if they are biased heavily enough. This restoration was more of a tune-up as this Adcom GFA power amplifier is only about 15 years old.