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 aball

I put an Adcom 555 to shame in my system. My little McIntosh dished it out way more readily in the bass despite the Adcom's big power rating. Maybe you need a different amp? You could be having mismatch issues too which are compromising it. Arthur