My usual rig is a pair of 10s  powered by an Ashdown MiBass 500W amp, but I can also use one of the 10s with a small battery amp for acoustic nights and small gigs. Unfortunately, at 300 * 300 * 450 mm, even that is a little bit too big to be unobtrusive, so I started thinking about something as loud as my 10 inch battery rig, but somewhere between a Phil Jones briefcase and a Roland Bass Micro Cube in size. Obvious first question, why not just buy one of those? Answer, the PJB costs more t