And that, Don, is where the rubber meets the road. There's nothing worse than turning up to a gig and finding your baby rig won't cut it. Many gigs round here, there's a DJ covering breaks with usually a BIG rig! I've NEVER seen a DJ play into a Bose system yet..!
So, you need a rig that will keep up with him. Not to mention, use something like that for a live band, you are going to be hard pressed to get even just VOCALS up to the acoustic level of the band instruments, let alone DI the keys and horn players!
Those little Compacts have a VERY narrow range of uses. If ALL you do fits its strengths, you are good to go. And, admittedly, in our community of mostly NH and background dining music, it can be a good fit. But you can get in a bind if you turn up with one, then find out your 'dining' gig wants some serious party music afterwards (young people eat, too, apparently!).
I'm going to give the HK's a long hard look.
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An arranger is just a tool. What matters is what you build with it..!