I have a Musicmaster Bass amp (later version with 6v6s) which I almost love. Great breakup and I like the tone. But it's not quite full enough - I generally play in a band with it on 10 and I dig the sound but just wish it was a bit bigger. I'm planning on doing the couple of little mods I've read about here, but has anyone ever put a 15" speaker in one of these little amps? I'm pretty sure it would fit with a new baffle. Let me know what you reckon! Thanks!