Hi, I live near Bristol UK, and have had problems finding a stockist anywhere carrying both the Tube Path 5.1 and the X-Treme 5.1 amps. I have checked out the X-Treme yesterday in London and was very impressed with the fruity growl which is just what I have been searching for but would really want to compare with the TubePath. I see this gets 10/10 ratings on Harmony Central. Could anyone help by at least telling me how they feel the two amps compare in the "fruity growl" area? Ihave recently bought a Warwick Corvette$$ 5string and been very pleased with it but my current Hartke rig doesn't do it justice. Thanks, Jim.