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Loss of bass & full spectrum sound

Can anyone shed light on my audio system problem?
I have PSB Synchrony one,Musical Fidelity M6i + cd player & turntable along w/video
The sound is Full with deep bass then after an hour it reverts to a different unenjoyable presentation with no life..
This has been going on in my NYC apt for about a year
I have a great sound then it changes (white-washed).
I adjust speaker cables(AQ biwire comet)& occasionally it regains a full body sound however after about one hour it's gone.
All my components have been checked to function properly.
I suspect an electrical problem but voltage is steady 120
Any similar experiences?
fishing716
fishing716 OP
316 posts
 
Today was better but:
Sometimes a break in the circut like changing to a different source comprimises the full sound.
Does anyone have deep bass most of the time but weight & impact changes for no apparent reason?
Peak hours ( 5-9) pm are vulnerable time
chayro
2,996 posts
 
Electrical conditions definitely affect the sound. Many people believe their systems sound the best early in the am or late in the pm. Try a good power conditioner, like an Audience. The non-Teflon versions are very good buys on the used market if you can find one. Don't cheap out on this - a crummy AC conditioner will kill the sound. I'm not saying Audience is the only good one, but all the good ones are just as (if not more)expensive.
fishing716 OP
316 posts
 
I use Audio Prism Foundation II about $800
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