Amp Shuts down

[EKIM]

I am running a Pioneer DEH-P6800MP that I have hooked to a Sony X plod
500 Watt Amp that is feeding 2 pairs of Polk Momo MMC6500 with the 2
way's attached. The problem that I am having is when ever I start to
turn up the stereo the amp shuts down. I have tried turning the amp
all the way down but I am still having the same problem with the amp
shutting down. I know that the amp works I took it out of my truck
where it worked fine. I have tried to run the head unit and the
speakers by them self with and with out the 2 way's but when the bass
hits all I hear is a clicking noise. I am running a regular battery
and a 600-watt alternator.
Does any one have any ideas what I can try next?

[KU40]

what impedence are the polk speakers, and how do you have them wired to
the amp? is it a 2 channel or 4 channel?

the click you hear when they are attached to the head unit is from
either clipping or lack of a lowpass filter. basically, the bass is
distorting, and if you drive them hard and bottom out the speakers you
can destroy them.


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KU40