How do you have the subs wired and what impedance are they? Your amp is only stable to 2ohms. If they are 4ohm drivers, 2 have to be series & 2 have to be parallel. If their 8ohm drivers, parallel is fine. If your not sure, add a comment to this post with the model numbers on your subs and I will get you the correct info needed to do it right.
Answers & Comments
How do you have the subs wired and what impedance are they? Your amp is only stable to 2ohms. If they are 4ohm drivers, 2 have to be series & 2 have to be parallel. If their 8ohm drivers, parallel is fine. If your not sure, add a comment to this post with the model numbers on your subs and I will get you the correct info needed to do it right.