Greg,
Installing the second line, which will allow me to put an amp on its own line, with a Shunyata Defender on each, allows me to match/optimize power cable lengths. If I went with only one more outlet, the location would force me to use 2m power cables, and around .5m of that would be excess to the needs of the amp closest to the circuit. The new circuits will be equidistant from each individual amp, somewhere behind the grey bass traps in the photo below.
I may never get into the Relentless stratosphere, but the incremental cost for the second new line is minimal. I also have JL Audio Fathom 113s flanking the system on household 15 amp lines as well, and depending on where the new outlets go I might be able to plug them into the new circuits. Probably not a big deal for the subs, but having everything on lines exclusively powering the stereo couldn’t hurt…
Cheers,
Mitch