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What's Going On?? Sound changes every night

O.K., this is what I'm experiencing: Some nights my system is superb and I just get sucked in and have to force myself to stop. This will be for 2-3 night and then all of a sudden, the next night or three, the music looses life and I can't get involved. The sound looses high end sparkle and extension. Things sound closed in a bit and percussions instruments that the night before were right in front of me are now fake with a closed in and shelved down presentation. Cymbals no longer sound like wood sticks on bronze but as if someone threw a blanket btw me and them.

Is this a power conditioning problem? I use a hospital grade outlet but not a dedicated circuit and no power conditioners. Or could it be my DAC which is a Perp Tech w/ Level 2 WrightMods and cryo treament. When the system works right I couldn't be happier but it seems something weird is going on every few days or so. Could it possibly be coming from the local power company and I need some sort of powerful line conditioner?

System:

Merlin TSM-MX speakers
REL Strata III subwoofer
Air Tight ATM300 stereo amp
Joule-Electra LA150 pre-amp
WrightModded Perp Tech DAC
CEC transport or Marantz SE 5 disc changer as transport
Cardas Golden Reference interconnects
TG Audio speaker cables
tomryan
rushton's avatar
rushton
2,430 posts
 
Changes in the electrical power over the grid, humidity changes (as Rwwear notes), and air pressure. All will have an impact.
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cdc
1,412 posts
 
I agree with Onhwy61. You can get ear or brain fatigue after listening to music for a couple of days. Take a few days off and avoid loud noises (I wear hearing protection) and when you go back to your stereo, it should sound great. I've had bright stereo's and mellow stereos, and it happens with both although I need a longer recovery between listening sets on the bright stereo.
mhu
102 posts
 
I used to experience this too. Like most here have already mentioned, I think it has something to do with the electrical supply. I've gotten a BPT 3.5 Sig plc and hasn't noticed this shift since.
rx8man's avatar
rx8man
1,355 posts
 
Same thing goin on here.
As far as the human aspects, Onhwy61 is correct.
The electrical & climatic conditions as stated by Rwwear & Rushton are all I could EVER figure as having impact too !
honest1
572 posts
 
All the above answers are great, but I want to throw another 2 out - (1)maybe the quality of the CDs/recortdings. On a night when your not getting "into" it, try playing a CD that sounded good recently. (2)Another possibility is that you're not choosing music that really suits your mood. Choosing music is a strange ritual for me. (well not THAT strange) I scan over my discs and just see which I'm drawn to, trying to not have a preconceived notion of what I want to listen to. I may start off thinking I want Mahler, and end up listening to Milli Vanilli (they really were good, whoever performed the stuff!!!)
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