Panel speakers tend not to go very low (ie most Maggies and almost all stats) and therefore they have a natural bass roll-off when run full range. In other words, no need to use any high-pass filters with them to "relieve" them of bass duties.
So run the sub (and its amp -- internal or external) from another pair of preamp main outs (if your preamp has two pair) and set it 10 - 20 Hz below the spec'd low limit of your panel. Then slowly bring up its volume until you can just barely hear the additional low end.
If you're buying just one sub (an excellent solution with panels IMO) place it exactly between the speakers (L/R/F/B) and if it has a phase adjust, set it to 90 degrees.
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So run the sub (and its amp -- internal or external) from another pair of preamp main outs (if your preamp has two pair) and set it 10 - 20 Hz below the spec'd low limit of your panel. Then slowly bring up its volume until you can just barely hear the additional low end.
If you're buying just one sub (an excellent solution with panels IMO) place it exactly between the speakers (L/R/F/B) and if it has a phase adjust, set it to 90 degrees.
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