I use a Hifonics 50x2w amp bridged to 180watts rpms mono. It delivers all the sub can handle. My other amp is a MTX Thunder 302 running 400w rpms into 2ohm driving MB quart front seperates and rear coaxials. I reversed em (with the MTX running 400w bridged to the sub and the hifonics running the main speakers)but it played louder and cleaner with the smaller amp on the sub.
As you can see it even blew the dustcap off the sub
