15 amps or 20 amps outlet

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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More is better than less, after all we're Americans (or most of us are). 10 gauge in most instances is overkill excepting for long runs from the breaker to the outlet. Overkill is always better, less resistance and heat. For a few dollars more why go with less?

The circuit is there not to protect what is plugged into it but to ensure the wire (romex) running from the breaker to the outlets (load) doesn't overheat by drawing too much current through the line, overloaded circuit, pop goes the breaker. A cord rated for 15 amps plugged into a 20 amp outlet is only under sized when the amp draws more than the cord rating.

I was told by the more informed I might want to do this if I stop renting and build for my Mesa Baron with the Hubbles.Get some feedback if the PS outlets are worth it at $50 a pop.PS told me they are rated to true 20 ans actaully perform up to 40 amps.Just wehn I was asking power cord questions folks suggested theat the money spent on them would be better put to 20 line.But does make sense that your amp would have to be able to drarw and take advantage of it.The ac regeneration thing seems to run counter to this idea (it would bottle up extra current)so maybe that investment makes more sense if if your amps can't use the extra juice.