Adcom 5500 2 Channel Power Amplifier

The Adcom GFA-555se: A great stereo (or mono bridgable) amplifier with TRUE balanced differential inputs.

All of the pro's of the original GFA-555 and improved model GFA-555 II plus the GFA-555se includes toggle switch selectable single-ended RCA or XLR inputs which are TRUE balanced differential inputs (*confirmed by the factory engineers). Clean design, simple signal-path, heavy duty power supply (no inexpensive 'switching power supply" as many others use) , class A/B operation and great performance for the price.Read full review

Verified purchase:  Yes • Condition: pre-owned • Sold by: asinewave24

Superior Vintage Power!!

This is a very good sounding amplifier. It has excellent build quality.

Verified purchase:  Yes • Condition: pre-owned • Sold by: shoppingusa2010

Clean high current amp super sound stage

This is the redesign of the 555 done by Nelson Pass, an acclaimed audio engineer. It has more massive heat sinks with double the driver board componentry. The audio is very clean and powerful. This is a brute of an amplifier and will stand lots of abuse, without breaking down.

It is an exceptional buy at any price under a thousand.Read full review

Verified purchase:  Yes • Sold by: lostnfunds

Adcom. Vintage and still NEW!!

Former Nashville audio consultant at the McIntosh store NICHOLSON HI FI..Sold these units. Fabulous 2nd choice to by beloved McIntosh gear. What a superb audiophile BARGAIN..GMATLOCK

Verified purchase:  Yes • Condition: pre-owned • Sold by: fishak1

great buy

words can not say how powerful and great this amplifier is.get it now.

Verified purchase:  Yes • Condition: pre-owned • Sold by: 428kingcobra

Great Amp

I love Adcom, I always have.

Verified purchase:  Yes • Condition: pre-owned • Sold by: digital-film

Very powerful and clean

This is an incredibly powerful and clean amp. I’m usually listening at a volume of 4/11.

Great Value!

amazing sound quality for the dollar.

Verified purchase:  Yes • Condition: pre-owned • Sold by: mber6539

Have not tried yet

Well packed. Have not tried yet.

Verified purchase:  Yes • Condition: pre-owned • Sold by: notjusthifi

Quality for reasonable price

Great !

Verified purchase:  Yes • Condition: pre-owned • Sold by: tara-sell