I perform in New York City and have been looking for the best portable set-up for years. A while back I settled on an Acme low B-2 (2X10 cabinet) with an Aguilar AG 500 head. While the tone is great, the Aguilar's protective mechanism causes it to cut off when it clips (with the Acme, when the gain is at 12 o'clock or higher). Tone is important to me but on most of my gigs, volume is my #1 concern. I've been encouraged (by the "Epifani 4x10 vs. Ampeg 4x10" thread) in my consideration of the Epifani UL 410 as an upgrade option (if I start lugging a 4X10 cabinet, it's gotta be light!). I was wondering what people thought of trying to power a 4 ohm UL 410 with the Aguilar AG 500 (500 watts at 4 ohms). Does this sound like an effective approach in terms of trying to get the most volume? I also like that the Aguilar AG will fit into my gig bag because it's not that deep, so I guess my next consideration would be which other amps would also be as compact but even louder than the Aguilar? Finally, without considering the portability of the amp, what would you suggest as the LOUDest 1-piece amp I could use with the UL 410? Thanks for reading all this!