Hi there, just if you are interested in the Hughes&Kettner BlackSpirit 200 ...
I tested for some days this little beast what is basically a 4 channel analog (transistor) amp running at 2, 20 or 200 Watts. It also has a red box providing 8 different cab types. In a nutshell, very natural sounding in direct to cab mode and also when used as recording amp via red box. I have also some other good amps in the room (Mesa Express 5:50Plus, Fender Deluxe Reverb) and .... I can mimic most of the sounds quite well with the Black Spirit - in terms of feel (very direct / no latency) and also sound quality wise.
Comparing to some of the M Britt profiles in the KPA: I was able to dial in very close if not identical sounds (sometimes may be even more "open") with the H&K amp. I focussed on clean and crunch and typical Fender clean, Fender on the edge, Marshall type of sound came out with ease and by using a cab you can achieve kind of sick level of power. It is not exactly cheap with around 790 Euro but I would say it provides all what most of the players would need and this at very high quality.
Has also some basic effects (reverb, delay, modulations) and a nice booster. It can be controlled via an IPad app or midi. Presets can be saved on the Ipad. So in my opinion this is very good a) alternative for a KPA (for gigging and recording if you do not need the effects and more sound / profile variations) and/or b) a light-weight backup for the KPA able to cover a lot of different music styles. I play now for 46 years and would easily say that this little thing is certainly the best transistor based amp as it can beat some of the tube amps in a way as you can enjoy the power amp sagging at much lower volumes. No artificially sounding fizz - just "real" tube sound. Great to have these possibilities nowadays. (PS I have no relationship at all to H&K :-))
Rock on
Sacapuntas