if your goin with about 1k of power you might wanna get two 1 farad caps or one 2 farad caps because once you hit a musical peak your cap will fully discharge and not have enough time to fully store a charge again before another musical peak making it point less to have. a general rule of thumb is double the power of what your gonna run, like your gonna go with about 1k watts so you want enough for 2k watts. just my $.02