I just installed two dedicated lines for my system. Each is on its own 20a circuit breaker. I used 10 gauge hospital grade MC cable (exact same length) and Cardas 4181 duplex outlets. I was expecting a quieter noise floor and better sound. I have a 3x to 4x increase in the noise floor compared with a regular outlet nearby. One of the circuits has a "crackling" sound. For the best results, I need to put my amp and source equipment on a single outlet. If I use both the sound gets worse. Any ideas? I need to have my electricians come back, but would like to have some audiophile wisdom for support.
Great feedback everyone. Much appreciated. I took the hospital grade MC cable recommendation from my electrician. Jim, I think I need to read that passage several more times to get the gist of it, I have a call into my electrician and will share the wisdom found here. Thank you all. I'll let you know how this turns out. Pete
Jea48, the 2 circuits are parallel on the panel. Is that an issue? The panel is a relatively new (9-years) 200 amp panel. It is full with no additional slots. I've got another 150 amp panel next to it which is also full.
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