Get the dual 4ohm DVC Kicker. 900 watts of power is plenty for that speaker. If you take that amp down to 1ohm, it would be like running your engine at 6500 RPM ALL of the time. It might handle it, but not for long. If you absolutely have to have more power to that sub (which you won't) get a bigger amp but that amp with a dual 4ohm L7 will pound just fine. Just make sure the box is built to Kicker specs and get a good strong signal to the amp. Oh yeah, wire each voice coil to each terminal on the amp and you will have 2 ohm. Positive to positive, negative to negative.