i disagree with jnovak. i just installed 4-20 amp dedicated lines in my audio room. all the lines are equal length, 10 guage "home runs", from the top of my panel, and on the same phase. my electrician used top level circut breakers. i am using jena labs cryo'd duplex outlets. i am using one outlet each for digital and analog and one each for my monoblocks.
my opinion is that it is ideal to use 2-20 amp circuts for monoblocks as long as they are on the same phase. 2-20 amp circuts will be like giving your monoblock power supply a little more headroom on peaks....it might help but it will never hurt.
after much reasearch i have learned that the potential noise cancelation of opposite phases is far outweighed by the "ground loop" problems caused by trying to use opposite phases.
the electrician that installed my lines is a kind of "electrican to the stars" here in the seattle area. he has done hundreds of high end theatre and audio rooms and has to fix many problems caused by trying to use opposite phases. i recommend talking to a local electrician with experience in this issue for the practical side. doing the basic things right is most important in good power.
i have heard the "opposite phase" viewpoint promoted but feel that hum or noise caused by grounding problems are much more difficult to deal with than actual noise from your local neighborhood transformer.
of course, YMMV.
my opinion is that it is ideal to use 2-20 amp circuts for monoblocks as long as they are on the same phase. 2-20 amp circuts will be like giving your monoblock power supply a little more headroom on peaks....it might help but it will never hurt.
after much reasearch i have learned that the potential noise cancelation of opposite phases is far outweighed by the "ground loop" problems caused by trying to use opposite phases.
the electrician that installed my lines is a kind of "electrican to the stars" here in the seattle area. he has done hundreds of high end theatre and audio rooms and has to fix many problems caused by trying to use opposite phases. i recommend talking to a local electrician with experience in this issue for the practical side. doing the basic things right is most important in good power.
i have heard the "opposite phase" viewpoint promoted but feel that hum or noise caused by grounding problems are much more difficult to deal with than actual noise from your local neighborhood transformer.
of course, YMMV.