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I posted a note in the "general" section on the difference betwen hearing my system on Sunday vs. Monday afternoon. Several suggested the differences were all in my head or the result of two many martinis. One who took the subject somewhat more seriously suggested that a PS Audio power regenerator might work well.
Before I even try to borrow one, however, I would like to measure what's going on at my wall socket over a week or so to see what's happening. I have read about large voltage swings (110-120 volts), high distortion (3-4% or so), and lots of noise (?). With better data about the state of my "juice" I believe I will better be able to judge whether I need power conditioning, power regeneration or whether I should just forget the whole idea.
The Accuphase power conditioner has a meter that reads out voltage and distortion. Is there a separate meter that does the same thing? Or do I need a 'scope?
Other ideas?
Thanks,
Chuck
Follow Ups:
I responded to your "problem" previously.
I am bit disapointed you are still tapping in the dark. If you read my response again, you should understand that is the only way to verify what is going on.
But, you are free to explore! That is the beauty of search for an answer.
So here we go...
To verify if your AC power voltage variation is causing you a trouble, you can do this:
Go to some hardware store, Walmart, Kmart or where ever in the world you are, and buy a DVM, or so called digital meter. Do not pay more than $10US!
Connect the little thing to your outlet and start monitoring the changes. Do not monitor the change on meter first. Monitor when it is that you believe you hear difference in your audio system. Then, when you are sure you hear some change, glance on the meter and record voltage and time on the paper.
Do this for about 2-3 weeks, and see if meter readings correspond in any way to your experiance.
Will cost you $10, and 3 weeks of fun.
P.S. If I could have 3 weeks of fun I would pay way more than $10!!!
Check for voltage changes with a multi meter set to AC. That is easy to do. If you are seeing a five volt change or more, I would discuss this with your power company. If it is stable, I would work on filtering the AC starting at the breaker box. The fact is we live in a world full of RF and UHF producing devices. I have found Bybee devices to be effective at filtering AC along with other passive methods.
The cheapest meter I found on-line (see link) goes for about a grand, and you would need to rig up a computer with it to record the data.
You only need a simple voltmeter to observe fluctuations, a stethoscope to listen to your amp's power transformer to see if harmonic distortion is bad enough to cause core saturation, and a portable AM radio tuned between stations to hear the effects of electrical noise inside your circuit breaker panel (requires removing the front cover).
If your fluctuations or distortion are bad enough to cause performance problems, then you might need a DC-blocker or regenerator. However, RF noise control can be done with cheaper filters.
Ulp! No, Al, I don't. I just figured that if such a meter was built into the Accuphase, it couldn't have cost much. I'll try the other route.
Thanks,
Chuck
... other large weekday users or conversely close to a lot of people at work during the week and big time power users on weekends, you could very easily hear a big difference for simply that reason.
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