I've been doing lots of reading here the past few days but still not quite zeroing in on decisive info. Out here on this island there's no way to test drive anything. How do you feel about a TC Electronics BH250 head driving a SWR Goliath Jr II cab (2/10, tweeter, 4ohm 250W RMS)? Venues here are small. Music is rock and roll. I have a 700 watt rig if I need one. Also, Hartke's 250 watt amp has "tube emulator" preamp. What is that and is it worth anything? I've owned the 3500 twice and currently have a 7000. I like the tube pre-amp, but understand why a tube wouldn't be in the 2500 model. What say you?