I use a Hartke 5000 head with stacked 410 and 115 cabs. Too big, too heavy for a lot of smaller gigs. What's the best combo amp to play "The Blues" in smaller bars and clubs? Do two 10"s give you the highs but not enough bottom end or is one 15" better at the lows but you miss the highs? How much power would be useful? I have a Fender BXR 60W 112 and it sucks...no highs, no lows. Maybe I should take the Hartke head and only one of the cabs? Any recommendations for a blues bassist?