I think I would rather spend an extra $200 on an amp that will put out 4k @ 1 Ohm (Lanzar OptiDrive OPTI4000D) more efficiently than an $400 to $600 on a H/O alternator to run .5. I will be getting a Kinetik HC3800 to go with this, plus I have done the big 3 (1/0) on what i already have. Thanks...