Quad panel outlet - can I do one circuit on this?

gs5556

A true 20-amp circuit has a 20-amp receptacle, which has a different blade configuration so a standard (15-amp) plug won't fit into it.

Are we talking about the US? A 15A plug will fit into a 20A receptacle. The opposite is not the case.

Plugging a high power amp into it's own circuit ensures optimal performance into low impedance speaker loads and has no other advantage than that.

There are many potential advantages to dedicated lines, regardless of speaker loads.

@cleeds

I’ve never have seen an audio component with a 20 amp cord. Have you?

If you run two circuits while you are at it (one from each leg) then you are ready to run a 240v component should one ever tickle your fancy.

yogiboy

I’ve never have seen an audio component with a 20 amp cord. Have you?

Yes, absolutely.

Audio Research, D’agostino, others. It’s not necessarily that they need the full 20A at 120VAC, but that the manufacturer recognizes the advantages of a 20A line, such as minimizing voltage drop. ARC used to ship preamps with 20A cords - obviously, no preamp needs a 20A line.

Power conditioners and iso transformers often come with 20A cord and plugs.

It is better to use two duplexes instead of a single quad for this reason:

With 2 duplexes, you have an improved ability to arrange power cords to mitigate interference and interplay. 

I was able to remove a persistent hum simply by rerouting cables and moving component positions on the shelves.