Sounds like your bias might need some adjustment and your amp could benefit from a good servicing. The upside is that they are fairly simple amps to have serviced and once running in top shape will have great sound for the $ 150 that you paid.
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!
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!