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

Showing 1 response by audioconnection

My guess is the you have a intermittent AC connection acting as a diode either In your AC box, a sub panel,circuit breaker or where your service starts in the basement.
Call an electrician, and make sure he tightens up on all of the possible connections.
We have seen this in the AC box as it arcs in and out spoiling the systems performance.
No power cons will correct for this.

JohnnyR