[Darren]

I'm running them in dual mono pairs at 4 ohms per side using the D4 dual 4 ohm voice coils. I chose the dual 4 ohm for their more desireable Q which is closer to an ideal 5 for IB use. I'm driving them with a Behringer EP2500 and giving them a total of about 1,300 watts. They could definately handle more but that is plenty to get my 3,200 cubic foot room very excited. I cannot push the drivers to bottom out with the current power.