Amp ratings can be a tricky metric for powered subs. Power rating alone doesn't determine output - cabinet design (both size and ported/sealed enclosure type) and driver selection play big roles. My older LFM-1 (the original, now discontinued) provides a tremendous punch in my 23'x17'x8' room, and it has the same frequency response with just three more dB of output (115dB rather than 112dB). I don't know how it will stack up to the Carver, but my suspicion is that it would serve you well.