Help Needed Power Amp lacks punch


I just got a used supposedly high power Adcom GFA-5500. Had it run in for a few days and found that this amp has got very weak bass punch. No unusual noise or hum. Got everything but bass punch. Asked the dealer he said it's because the amp is not powered for a few months and it needs time to charge up those hugh capacitors. Asked a technician and he told me it could be a faulty capacitor or maybe also a transitor fault.
I don't know who is right and I hope that someone can give me some advise here.

I would like to know
1. how does faulty cap sounds like?
2. how does faulty transitor sounds like?
3. how long must it takes for a cap to charge up? and can that result in weak bass like lack og power?

Please help. Thanks.
rainchild

Showing 1 response by fetguy

One thing to check is the receptacle in the wall; most all home wiring is done with "push pins" meaning that the house wiring is pushed into the receptacle where it is held in my tiny little contact points. By far the greatest loss is occuring here. I have seen cases where a drill-motor would hardly run!

Get an electrician to put in some hospital or industrial grade receptacles and make sure he wires then via the nice tight screw!

That being said I do remember that particular Adcom as being a bit laid back in bass transients. Get a Bryston (for instance). That is among a class of amps that are only beaten by Krell in the bass (and the Krell is not quite...well...right...). Plinius is another good choice, though I think that you get more bang for the buck with Bryston (dollar value and amazing warranty). Just my bias of course....