Hi mate,
I have used them in a tower array but not anymore.
I have 1 custom (2 x 12") in a single cabinet, 2 x krix seismix 3 (similar to PB1000) & 2 custom 12" by ascension speakers.
I’m in australia, so you won’t have heard of Ascension or Krix, most likely.
I’ve got the Krix at the left and right rear of the room, summed together. They share the same signal from minidsp.
The Ascension subs are front left and right and the behemoth 2x12 is in the centre.
I’d love to upgrade to 2 Rhythmik FV25HPs and sell the Krix, but it’s hard with no real supplier of Rhythmik in aus.
I really just want to make sure I have enough headroom in my subs to keep up with my amps, though I don’t think I’ll ever be able to max them out, its nice to know I have it.
I have 5 subs…four speakers with subs, Definitive Technology PM 900’s…each speaker has long throw 10 inch woofers, One 6-1/2" Bass/Midrange Driver, One 1" Pure Aluminum Dome Tweeter.
Single sub - Definitive Technology Supercube 1, contains a 10" woofer pressure-coupled to two 10" radiators.