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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

Showing 1 response by dweller

dweller's avatar
dweller
3,825 posts
 
Is this plausible?
1. You bought your PSBs used,
2. Whomever you purchased from blew out the woofers and had them reconed.
3. The new surround is nice and springy when you first start listening but "poops out" when it gets warm,
4. Most amps put out more power after they warm up which contributes to the problem.
Problem solved!
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