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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
 
Interesting coincidence that Bill Gaw should chose to write about this same phenomenon in his closing regular monthly column "Audiolics Anonymous" at Enjoy the Music, February 2005:

http://www.enjoythemusic.com/magazine/viewpoint/0205/aachapter65.htm
.
tomryan OP
794 posts
 
Thanks, Rushton!
cdc
1,412 posts
 
Music has been said to be like a condiment. Put on something to complement your mood or the situation.
mth19331b0
1 posts
 
Makes me wonder if onhwy61 and some of you others get moody monthly?
dazzdax
599 posts
 
Hi Tomryan and others, if you are using an ICEpowered amplifier (or another version of switch mode power supply), like the ones from Jeff Rowland Design or eAR (Acoustic Reality), I guess you'll have less trouble with AC voltage swings, because of the inherent immunity of those power supply techniques to AC voltage changes (stable from 110 to 230 V). The sound is not influenced by those voltage changes and you'll hear the same sound whether it is in the morning, in the afternoon or at night.
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