I had a dedicated 100A electrical sub-panel with (4) 20A circuits installed just outside my dedicated listening room. Twisted pair wiring (#12) is used for each circuit with the neutral and hot wires wrapped on 2" centers and the ground wire placed parallel in PVC conduit. A paper presented at the 2010 AES 129th Convention shows this method has the lowest ground voltage induction tested.
Dedicated lines from subpanel
- Thread starter tjbhuler
- Start date
Speedskater
Member
That's a great way to do AC power.
The Bill Whitlock paper:
Ground Loops: The Rest of the Story
Bill Whitlock, AES Fellow and Jamie Fox, P.E.
This paper was presented at the AES 129th Convention, 4-7 November 2010, San Francisco, CA, USA
http://www.jensen-transformers.com/...est-of-Story-Whitlock-Fox-Generic-Version.pdf
* * * * * * * * * * * * *
random general thoughts for other planners:
a] Most hi-fi setups only need one 20 Amp circuit.
b] I like to oversize the wires by one size.
c] Only need one twist about every 4 or 5 inches.
d] The electrician will go bananas when you tell him about twisting.
e] Because it's plastic conduit (rigid or flexible) Isolated Ground receptacles are not beneficial.
The Bill Whitlock paper:
Ground Loops: The Rest of the Story
Bill Whitlock, AES Fellow and Jamie Fox, P.E.
This paper was presented at the AES 129th Convention, 4-7 November 2010, San Francisco, CA, USA
http://www.jensen-transformers.com/...est-of-Story-Whitlock-Fox-Generic-Version.pdf
* * * * * * * * * * * * *
random general thoughts for other planners:
a] Most hi-fi setups only need one 20 Amp circuit.
b] I like to oversize the wires by one size.
c] Only need one twist about every 4 or 5 inches.
d] The electrician will go bananas when you tell him about twisting.
e] Because it's plastic conduit (rigid or flexible) Isolated Ground receptacles are not beneficial.
Something else to add I haven't seen mentioned here already: Audio Sensibility can sell cryoed 10 gauge romex, or can cryo anything else you want frozen, if you are into that sort of thing...
http://audiosensibility.com/blog/ac...ectrical-Cable/c/5828813/offset=0&sort=normal
http://audiosensibility.com/blog/technology/cryogenics/
http://audiosensibility.com/blog/ac...ectrical-Cable/c/5828813/offset=0&sort=normal
http://audiosensibility.com/blog/technology/cryogenics/
Speedskater
Member
A cyroed cable only stays cyroed until you flex it.
Arnoldhasmail
New member
Really? I didn't know that.
I brought a dedicated line up from my panel but didn't use anything special. Still found a huge difference in noise and sound quality...
Now outlets...they made another huge increase in sound quality...but haven't tried outlet covers yet...
jerbil
New member
MSB electronics has a good article in their KB re: dedicated circuits, gauge, and some specific things to look for too.
brad225
Well-known member
If you are taking your runs from the main panel be sure to keep all of the breakers on the same phase.
You will have breakers on both sides of the panel end to end, but they will be every other breaker space vertically. This is how the main buss bar is constructed.
You will have breakers on both sides of the panel end to end, but they will be every other breaker space vertically. This is how the main buss bar is constructed.
Speedskater
Member
any links?
jerbil
New member
Speedskater
Member
A cyroed cable only stays cyroed until you flex it.
There is an audiophile who posts on some of the forums, but his day job is engineering at a major research lab that involves super conductors. He has installed over 250,000 kilometers (or maybe it was miles) of wire and cable. In short he is an expert on cryo and cable and I recall that he said that just flexing the cable destroys the small benefit of cyro.