The is rated 350 x 1 @4ohms..
But its an Ample.. So you could expect a little more.
95$ is a good price. Yes. But dont call it a cheap sub, cause it really isnt.
For different reasons some products sell for less than they are worth.. Example, the Image dynamics subs, they are insane SQ subs, but sell for low quality sub prices..
You should try finding a shop that carries these brands and try them out..
Then you'll know.
