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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
mapman's avatar
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mapman
15,679 posts
 
Tbooe,

I see you use smaller monitor speakers whereas OP was having his bass issues with larger full range speakers that are probably more sensitive to amp matching due to more low end extension.
tls49's avatar
tls49
1,318 posts
 
I'll be curious to hear the outcome of the new amp, which is rated at 135 watts into 8 ohms and 200 watts into 4 ohms.
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mapman
15,679 posts
 
Yes, I am curious to hear as well.

I'm hoping it works out but clearly Fishing is basing his buying decisions on something other than the recommendations that have been offered up here. More power to him! I just hope it works out! Nothing on paper to indicate a major difference in bass performance should be expected, but paper never tells the whole story....
seikosha
205 posts
 
While I hope that the new amp fixes the issue, I'm skeptical. I recently read in another thread a post by I think Audiokinesis that describes situations in speakers where the voice coil gets too hot and starts to limit the bass response of a speaker. When reading that, I instantly thought of this thread. If that's the case, then it's the speakers, not the amps that are causing the issue.

Fishing, let us know how things progress.
llanger
27 posts
 
Inching toward 500 responses. How many new amps have been promised?
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