Originally Posted by KuttinEdge
Being that you only have the one subwoofer hooked up, as far as I can tell, chances are that it is not because the amp cant handle the impedance, being that is either a 2,4,or 6ohm speaker.
Unless its a two ohm speaker wired to bridge the amp... most amps do not handle a 2 ohm mono load.
Tell us what impedance your sub is, and how you have it hooked up to your amplifier. Also, check ALL your connections, the ones on your cd player (usually you only need to check the ground acc and power), as well as the connection to your battery. You should be sure that you have sufficient gauge wire (if it is a true 800 wrms amplifier, then you are going to need at least 4 gauge wiring).