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In Reply to: RE: Speaker wire length for correct maggie placement? posted by Davey on November 07, 2015 at 16:31:47
I believe that whenever I had used some crappy (long) interconnects, I've performed your "worst-case scenario/experiment", and my Tympanis never hummed. I almost always listen to them right after firing up the system and before any music begins. (I'd particularly be interested in verifying that my tonearm is still grounded.)
Follow Ups:
That's good. It means you don't have many 60Hz fields roaming around near your gear. Also, your preamp probably has a low source resistance which helps as well.
As Josh mentioned, power amplifier to speaker connections are obviously much less prone to pick up of EMI/RFI than line-level connections. Although there can be issues at high level as well. This is what spawned the whole "choke tweak" evolution a few years back. :)
Checking your tonearm should be easy. Unless it's non-metallic or anodized or some other complication that prevents a continuity check.
Dave.
Audible interference from EMI/RFI pickup in speaker cables is very rare, but it can happen, forex near a transmitter. Other problems are possible if RFI gets back into the power amp's feedback loop, I read a paper on that in the AES Journal more years ago than I care to remember. I think this is it but I don't want to spend 5 bucks to find out!
http://www.aes.org/e-lib/browse.cfm?elib=10294
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