at 12w3 is rated at 300 watts rms so i would say a single 10w3 is in that range and not to far off. a 10w3 might be more of a well round bass, but not boomy, if you want boomy get a 12w3 and run a 300/2, if you want louder get a 12w6 and run a 500/1 on it.