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Adcom 555 Mk 2 Questions

I'm a newbie here. I'm hoping someone is familiar with the Adcom amps & can provide some insight.

Long story short: My NAD 2600 blew up from static electricity. A friend who is not an audiophile has offered me an Adcom 555 Mk 2 really cheap for $150.

The rest of my system is: Teac Esoteric P-10 transport to PS Audio sl3 D/A by Illumanati cable. McCormick Line Drive Deluxe passive pre. NHT 2.5I speakers bi-wired. All analog wiring is Tara. Also have analog components & a Pioneer universal SACD player. Listening comments below are with the digital front end.

I just plugged the Adcom in (I'm told it hadn't been used much lately) & have 3 concerns. With all 3 concerns, my question is, "Is this normal behavior for an Adcom amp?

1. The heatsinks are quite hot from playing 4 songs at normal volume

2. There is some light hiss in both channels, even with the input muted. One channel has more hiss then the other

3. The amp is quite a bit brighter then the NAD. It may need to warm up for awhile (though again, the heat sinks are almost too hot to touch)

Thank you for your answers!
moomoo

Showing 1 response by kencrouch

kencrouch
10 posts
 
I am the original owner of an original model GFA-555. This amp has been on 24/7 its entire life - intially with Magnepan MG2, then small JmLab, and now Paradigm Signature 8 - the heat sinks on my amp never get hot - rarely if ever even warm - checked them just now - listening at low levels they are dead cold. This has been a great amp for me - maybe I just got a good one but I have always been very satisfied with the sound and performance of this amp. YMMV -

Ken
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