2. amps-preamps
  3. 1364614567

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 5 responses by tls49

tls49's avatar
tls49
1,351 posts
 
I adjust speaker cables(AQ biwire comet)& occasionally it regains a full body sound however after about one hour it's gone.
If you have an electrical problem at the AC outlet, adjusting speaker cables will do nothing. Are the bottom connections on the speakers tight?
tls49's avatar
tls49
1,351 posts
 
For some reason if I reconnect speaker cables I regain the missing low bass output.
That’s why I ask about the bottom connections on your speakers. A problem there would result in a loss of bass, and it’s probably just one speaker. This could be the cables, or an internal connection at the speakers’ terminals. What type of connector are you using at the speaker, Spade or Banana?
tls49's avatar
tls49
1,351 posts
 
Definitely try what Yogiboy suggests, should be easy since you have bare wire connections. All this does is eliminate the separate paths for High and Low inputs to the speaker. Will not cause any problem, but will possibly sound slightly different. If you still have the problem, it’s not the speaker cable.

When you say the sound is intermittent, has it ever changed suddenly while listening, or does it seem to be a gradual change toward the end of the day? Also, can I assume that this change is with all sources?
tls49's avatar
tls49
1,351 posts
 
I started with spades switched to banana's now am going direct wire
and then the comment,
Audioquest Comet biwire 6ft cables w/banana's are not defective
When you said "direct wire", was that just basic speaker wire, and not the Audioquest?

And I'll ask again,

When you say the sound is intermittent, has it ever changed suddenly while listening, or does it seem to be a gradual change toward the end of the day? Also, can I assume that this change is with all sources?

I'm sure the issue can be solved. It's just a matter of taking steps to narrow down to the cause.
tls49's avatar
tls49
1,351 posts
 
I worked in the audio industry for over 20 years, and even had upscale systems years before that time. Have helped many friends and other people solve just about any problem you could imagine, however this one is unique. You said you have used different amps and speaker cables, has this happened with the same pair of speakers?
More to discover