Here is the Onyx with a 12 inch subwoofer 250 watts rms 500 maximum output.If you`re looking for something not too big,but packs a nice punch with depth,this would be perfect.All you need is the wire kit & a decent amp to link this up then you`re rolling!Not sure on the frequency it plays at i believe this speaker can drop down to 30 hz,which is deep enough.Only serious customers need to apply & no paypal offers please cash upfront.This product can be demonstrated to show its working properly also the condition of the unit is well kept nothing wrong with it at all.Thanks for veiwing