That's good advice Glen, especially given the size of the amp. I would further add that they should make sure that if they do two dedicated circuits, both of them should be tied into the same side / phase on the mains and share a common ground between the two circuits. Otherwise, they could end up with the front end components being out of phase with the amp and one helluva hum from different ground potentials on the two outlets. Talk about going crazy trying to figure out what went wrong with the "upgrade" !?!?!?!
The same thing goes for doing several dedicated lines. Try to keep them on the same side of the box. If you can go one step further and make sure that they are on a side that has lower current demands ( such as opposite of the fridge, electric stove, washer and dryer, etc.. ), you'll be even better off. I would also recommend using one gauge heavier wire than what code calls for, especially if you have a long run back to the breaker box. Sean
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