Question for sub woofer users

One sub can be fine and you should simply move it around until you like the sound (generalizing, but my original REL worked great alone). I did get another REL last year and I like having two just to calm the corner standing waves. The "leave it alone" level thing doesn't work for me as bass levels on recordings can differ greatly, and I simply turn them up or down sometimes (rarely, but necessary)…no big deal as the level is right there. If you have a Room Correction Nanny gizmo you may be able to leave the sub level alone.

I'm a REL fan of course, but I do question their claim that the High Level input reproduces the sound of the amp. I certainly uses the signal of the amp but since it then goes through its own amp this claim seems like hype…understandable, but hype nonetheless, and with low frequencies likely not a big deal anyway as low frequencies generally rely on higher tones for aural specificity (!) and much of the overall tonal character unless the sub is very poorly designed.