I have a 2-channel amp and sub installed in my vehicle. At first, I just had the sub wired into the left output of the amp. Then I figured out I could bridge it (The amp is "bridgeable") so I did. But once I did this, the protect light on the amp came on at certain times. It did this when it was pushing a lot of "bass" (power) to the sub. Also, when it did this, the sub would cut out for a few seconds because of it. It never did this when it was wired into a single channel. I know that bridging gives more power and what not. Is this because my sub can't handle this much power, or is it my amp that can't handle this much power?

The sub is a 10" Kicker Comp that 4 ohm impedance. It's an SVC sub and it is wired correctly.

The amp is Toxic Audio S200.2 2-channel amp.

 

Also, it only does this at higher volumes. At about 5/8 of the way up on the head unit.

 

How is your electrical? Sounds like the amp is struggling to draw current. What gauge wire are you using?

 

A few likely problems:

Gain too high
Power wire too small / bad connections
Ground wire too small / bad connections