Adcom a weak link?

I don't know thoughts on the 555/565. If that gear has a reputation of being closed in or warm on top- that may tempt me to try something else.

My reason for posting is to try and understand the likelihood of a change making a noticeable improvement. If I change and think I may can tell a difference, I'll be dissappointed.

I enjoy a lively sound, maybe due to drumming and being 55. My phono cartridge is an AT120e- bright to some, perfect to me. I owned some Sonus Fabers and enjoyed them, but in the end chose to keep my Ushers and sold the Sonus Faber. 

Hope this helps, I do sincerely appreciate your advice/thoughts.

gary

I owned and used the 555 and 565's. They worked well but when I got a Classe 70 in my system that was a serious upgrade. It had more drive, handled the drivers with more control, went deeper, better high end and soundstage better. Who would,have thought that a 70 watt amp would sound better than a 200 with Maggie's. However, your mileage may very considering your speakers.

Although I never had the Adcom HT series, I also owned the 555 and the 565 mono blocks. If the 565 were modded (input resistors, caps upgrade, etc), they should be keepers. But I have compared the B&K ST and Sonata vs the B&K AV series amps and there is IME a big difference in that the ST and Sonata series are more extended in the upper registers and are more revealing. You may want to try first with upgrading two channels out of five of your 7400 if you can find a reliable shop nearby.

Perhaps you should contact Musical Design-http://www.musicaldesign.com/MC_AdcomAmp_mods.html.
They perform upgrades on old Adcom's. Maybe they can do some mods to yours. Their prices seem very reasonable, too

Thanks everybody. I think I'll swap some gear in and out before buying anything new. I have an integrated I can substitute and see how the system sounds. 

Gary