Amp/Preamp Asylum

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RE: Should I consider an Adcom GFA-555?

Posted by wawa2020 on January 5, 2012 at 14:12:34:
I think the Adcom 555II is the best choice in the old adcom range. I have used one for 15 years. More "there" than the mosfet adcoms to my ears.

If you do look for a 555II, plan at some point to have it recapped and have the resistors on the driver boards replaced ($200 or so at a service shop). I think its worth it if you can buy the amp at the right price.

If you leave it on all the time the slight hardness recedes and it sounds great. A very nice amp if you have power hungry speakers like my Platinum Trios.