2. amps-preamps
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Bass leaves after amp warms up?

I don't understand-after my Musical Fidelity M6i amp warms up for about an hour I notice the deep bass & kick drum aren't the same.
They sound less musical with loss of weight/depth.The notes are there but the moving of air have left.Sound is has much less impact and boreing.
I had the same problem with Bryston amp so there is no defect with amps nor with the rest of my equipment/
PSB Synchrony one speakers,AQ cables,Bryston CD Player.
My question has anyone heard similar & is there a plausable reason?
fishing716
lowrider57's avatar
lowrider57
5,418 posts
 
Fishing- you can try to message someone like Al like this;
to give him your email, spread the words out...
joeshmow at so and so dotkom
fishing716 OP
316 posts
 
Anyone shoot me an email:
tonypoid@aol.com

I will send 2 versions of recorded song with what I feel if different bass output

Thanks
jjrenman
279 posts
 
It seems that you have spent a considerable amount of time trying to regain the good sound after it is lost but have you spent anytime trying to lose the good sound. IOW have you done the mute/unmute or switching inputs etc repeatedly before you have lost the good sound to try and create the problem?

If you have some success on causing the problem on purpose it would give us another clue.
jjrenman
279 posts
 
Why don't you pick up a couple of very quiet "whisper" fans to keep the amp cool to see if it is truly a warm up thing.
jjrenman
279 posts
 
Are you using the "plugs" on the bottom woofer ports? If not you should try them. You may find that with the plugs the bass is lean at first but fills out after the amp is fully warmed up.
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