Bass leaves after amp warms up?

Hmmm, this is probably grasping at straws, but your mention earlier in the thread that you live "close to Brooklyn" prompts me to ask if you happen to live near JFK airport. A member recently mentioned in another thread that in the past he had sonic issues in his system that were caused by radar that was in use at a nearby airport. The problem went away when he moved to a different city.

Perhaps sensitivity to that or other kinds of interference will vary as a function of the warmup state of the equipment. Grasping at straws, as I say, but who knows?

Regards,
-- Al

I don't live near an airport & wouldn't be affected in that way.

We need Gregory House on this.

What about the Kimber PK10, did you use it with the other amps? I remember someone talking about faulty AC connections, and thought about the plugs on each end of the PK10. Have you ever used the stock power cord?

I set up just analog no digital but w/power conditioner.
Once again I found the sold,dynamic sound.
I said if this stays I will forgo TV,DVD even CD.
But just 20 minutes into listening
I could hear the kick drum less & less
And over about 10 seconds my sound was gone.
When the song was over I had entirely different presentation than previous.
I went back to song #1 & it was crap
In a word anemic sounding
I just heard this song and it was powerful,clear,driving with punch..You name it the sound was the way I like it.
Before I could sit back and enjoy,it was gone.
I'm not making this stuff up..