Currently have a SLD10D2 on a SFB2000 at 1ohm, takes that power daily no problem. Sounds great, gets loud, but doesn't hit the lows quite as well as I want. Box is .81 cubes tuned to 31.5hz with an aero port. SLD10 mounting depth is 4.9", and that's all I can go. This is in a 21 F150 supercab...