Punch 400aIV


Bronze Member
Username: King33

Post Number: 30
Registered: Nov-06
Alright guys. This is my first system and I dont know much. I bought a 12" mtx sub off of a friend for 80 bucks in a nice box and everything. My cousin gave me an old school rockford fosgate punch 400aIV.

It says 50 X 4 watts RMS into 4 0hms.

100 x 4 watts rms into 2 ohms.

Here's the Question. If I put the amp on the sub, is all 400 watts gonna be on it, since it is not mono channel?


Silver Member
Username: Oleg

Santa Monica, CA USA

Post Number: 662
Registered: Nov-04
What coil configuration does the sub have? You'll need to find out if the amp's bridgable and if it is, you can bridge 2 channels to run the sub. But you will not be able to see full 400W from that amp into the sub.
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