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In Reply to: RE: Getting house rewired including dedicated audio. posted by Rod M on April 10, 2014 at 12:53:17
Right, more sensible.
What about thicker guage for power amp only?
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I wouldn't waste my time unless you have an amp that needs a 30 amp breaker. It's more trouble than it's worth to work with 10 gauge, stiffer to fat to fit most receptacles.
-Rod
I agree, 12g is adequate. Everybody's issues are different even from house to house.
When I redid my house I increased the service amperage which came with all new and bigger cable from the utilities source up to my main. I had my electrician continued the run into a new sub panel l dedicated for audio and home theater then onto the breaker panel.
Two dedicated breaker lines each for both audio and HT. Everything from the sub panel was metal clad BX 12g with no junction box interruptions. Compared to most things audio this work was economical at just under $1K and the improvement was stunning.
Check out pages 31 through 35 in the link below.Note the test results of the aluminum armor MC cable.
Edits: 04/10/14 04/10/14
I'm not at all qualified to comment on the results attained in the article nor do I know the method the contractor used to ground my home VAC system.
Built in the early 70's my home used aluminum cable between the main and the panel. Romex fed both the audio and HT systems before the BX upgrade I mentioned.
Before the upgrade my PS Audio HCA-2 switching amplifier could be heard through two clock radios. It produced a harsh edgy presentation that fluctuated randomly. My Pioneer Kuro plasma also displayed random interference.
After the upgrade the audio and HT very noticeably better. Even my tube electronics worked dead quiet.
As I said most VAC system and their supplies can differ greatly. In my case the Romex and/or the way it was executed was absolute shit. The contractor didn't find anything out of the ordinary with the original Romex run. So if I'm losing something by using BX rather than Romex it's just fine with me.
I totally agree. Dedicated power is by far the highest reward tweak there is. When we moved to our current home, the main panel was fairly new and only fed the family room addition and an old sub-panel which was the old main and fed the rest of the house. I added two more dedicated 20amp circuits with 4 plugs each and had the bonus of another dedicated line that already existed. And there's not much of anything else on the main.
The main is on the back wall, so the runs aren't more than 10 feet. The worst part was patching and painting the holes in the walls to gain access.
-Rod
OK thanks, I see what you mean.
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