2. amps-preamps
  3. 1365648136

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 dover

dover
2,295 posts
 
Fishing716 -

A couple of suggestions.
What I have found with some mosfet amps is they go through cycles. On turn on, very transparent, then after a while they go gluggy. However if you wait another hour then the transparency returns.
The other suggestion would be to get the amplifer checked over - get the "bias" checked to make sure it is in spec. The bias will determine the operating temperature to some degree and too high a bias can result in "gluggy" sound.
More to discover