I have a Behringer NU3000DSP which is powering an Ultimax 18" in a large ported cab. I am considering getting a 2nd Ultimax 18 for a 2 sub IB manifold and powering them with this NU3000DSP.
The 18" Ultimax is rated at 1000W RMS (and handles even more) but is it still a good idea to underpower IB subs in general and this one in particular? The way two or four Ultimax 18" subs could be wired would result in about 520 RMS each. Do you think that this would be adequate power for these speakers?