Then maybe I'd be better off considering a woofer upgrade? Seems like the JBL 18" is in a similar size cabinet to the 3pi Thermionic. It also seems to be about the same efficency rating. I don't suppose I could upgrade to an 18" woofer? To tell the truth, my 12" is the biggest I've ever used and I love what it does for bass weight and body. It does (in my system) get a little boomy and lacks some deffinition at times, so I wonder if a cabinet tweek and/or different driver would address this. I would say, however, I only experience this on some recordings played real loud. In general the Eminance Alpha 12 is very good! Thoughts? Steve