Product ReviewsAdcom GFA-535 II 2 Channel Power Amplifier

Legendary Amplifier

The GFA-535 and GFA-535 II are well-regarded and well-built amplifiers. They've been compared favorably to much more expensive amplifiers multiple times. The '535 is built like a tank. Just picking it up you realize it's a solid piece of equipment. It's a dual-mono design with separate transformers for each channel. I've used it to drive Martin-Logan and Magneplanar loudspeakers without any problem and it sounded marvelous. In fact, within its power range, it sounds much like its high-acclaimed big brother, the GFA-555. Yes, it won't play as loudly but I've had it play plenty loud with low impedance, low sensitivity speakers like the Magnepan MG II and MG IIIa. It also never got hot, even when playing loudly. One thing to do with these older amplifiers i to make sure the bias is within spec, a pretty easy thing to do if you have the service manual and a decent multimeter. Or take it to a technician and have it done for you.Read full review...

Verified purchase:  Yes | Condition: pre-owned | Sold by: tech2_4sale

Super little high current power amplifier.

This is a very special power amp, in that it sports two separate power supplies, thereby giving it a cleaner (no crosstalk) sonic performance. It is very underrated on power at 60 watt / 8 because it has no issue producing close to 80 w/8 I dives good efficient speakers with power to spare. because it is a high current amp. Very good choice in a power amp to get the Adcom sound without breaking the bank.Read full review...

Verified purchase:  Yes | Condition: pre-owned | Sold by: genetripp

Adcom GFA-535II

The amp was just as pictured on e-bay. Shipping was quicker than I expected and was packed well in OEM box. I have not done extended listening yet, just did a fast setup to make sure it was working. I did not notice any problem. I would purchase form seller again.Read full review...

Verified purchase:  Yes | Condition: pre-owned | Sold by: marquib

Exceeded expectations

This was in excellent condition. Packing was incredible, and super secure. A work of art. Amplifier is in pristine condition and sounds great! Super happy with this purchase.

Verified purchase:  Yes | Condition: pre-owned | Sold by: us2015-saree

Pure clean power

This is my first Adcom peice, and it was purchased to power my Paradigm Atom Speakers in my exercise room. My Rotel 985 had been damaged and I needed a replacement. Having only two speakers in this setup, I chose the Adcom. Boy, am I happy I did. The clarity, power, and color is honestly more pure than the higher powered Rotel. It literally makes my modest Paradigm Speakers Sing! I haven't taken it up past level 3/10 yet, and likely won't ever need to in it's present setting, but there is absolutely no lack of power. I am very pleased with the value for the price. Read full review...

Verified purchase:  Yes | Condition: pre-owned | Sold by: greenvillevintage

Arrived as promised. Nice sound.

My first Adcom. It is as expected. Nice sounding. Have been playing it non stop.

Verified purchase:  Yes | Condition: pre-owned | Sold by: globaldeals247

Adcom GFA-535 II

Great little unit with a great sound.

beauty on the inside

nothing to look at but sounds great - lots of power

Verified purchase:  Yes | Condition: pre-owned | Sold by: addamsfan

Adcom GFA535II

Great unit. Punches well above it’s weight.

Verified purchase:  Yes | Condition: pre-owned | Sold by: lrp2000

Adcom Quality

A more civilized amplifier from a more civilized time...

Verified purchase:  Yes | Condition: pre-owned | Sold by: redgiant520