Hi Ken,Actually, there are a huge number of us who have moved to smaller, more powerful micro heads than the RH450 quite a while ago (much less the old, large heavy stuff). Also, the idea of turning a 210 on its side is not a new one, and is easily achieved if you so choose with virtually any 210 and most 212's on the market.
Except for the computer interface, I'm not seeing much to get excited about here myself, given the competition in the micro category. I'm actually most excited at this point about the number of small, high power handling 4ohm 212's out there now. A single 4ohm 212, with that 600-800 watt power handling rating (I know power handling is not the best indication of cab performance) and nice 500-800 watt micro head is really something regarding portability, stage monitoring, and the ability of a very small rig to handle virtually any gig.
There's no doubt that this rig would be impressive if it's the first small lightweight rig you've experienced. However, there are some amazing, super powerful small heads and extremely lightweight cabs out there now that, at least on paper, have MUCH more impressive power and weight specs than this rig.
Just addding a little perspective here!
I always look forward and value your opinions as you seem to know your stuff, but I think horses for courses.
I thought I had the ultimate portable rig (on paper) the PJB Suitcase and 4B ext cab. I won't comment on this appart from selling it within 2 weeks.
I then decided on a LMII with a single 4ohm cab option UL212 S2. Once again after replacing both drivers (faulty) the cab still didn't cut it. Boom, boom, boom.
Then decided I needed to move some air with 2 x NM-410's. Nice - but oh my back.
I've now decided on the TC rig. Amp, 210 and 212. Apart from this rig being designed for vertical stacking (tweeter in the top driver) the amp suites my needs.
You see I'm not an effects kind a Guy. Just need a tuner, good compressor and some sort of preset option.
Vioala - the RH450 with footswitch.
And regarding power, IMHO I've never driven my LMII past 1 oclock on the gain and 11 oçlock on the master. Just idling.
So in my situation 450W @ 4 ohm is ample for me. A nice, easy to setup/dismantle, tidy rig.

For now anyway.
Cheers, Pete


