Normal
Re: Mismatched SRXs OK ?Its a bit of a wiring trick but, if you have the crossover and amps you could run the rig 4 way. Your labsubs as subs (obviously), the 15s in the 725s as lows, the 12s in the 722s as mids and the horns in the 722s and 725s as highs. That gets you out of the odd issues you might run into running 12s and 15s in the same passband but still gives you the wider dispersion from having horns in all 4 cabinets. I have done something very similar with SR4732s and SR4733s over SR4719s with decent results.
Re: Mismatched SRXs OK ?
Its a bit of a wiring trick but, if you have the crossover and amps you could run the rig 4 way. Your labsubs as subs (obviously), the 15s in the 725s as lows, the 12s in the 722s as mids and the horns in the 722s and 725s as highs. That gets you out of the odd issues you might run into running 12s and 15s in the same passband but still gives you the wider dispersion from having horns in all 4 cabinets. I have done something very similar with SR4732s and SR4733s over SR4719s with decent results.