Update: I just got a Roland AC-60 and love it. I have moved the other two amps into the attic. I had been noticing the CM-30 was sounding a bit like a hornet in a can and this fixed that problem.
It has a kick stand on the bottom to angle it up a bit. But it also has a 1½” speaker mount on the bottom. So for use with a violin I have a tripod speaker stand to get it up off the floor to ear level so I can hear myself.
It weighs about double the CM-30 but it is still “man portable” as they say in the Army.
If this discussion is still alive....
I found the violin always needs a preamp if you are fussy about your sound being really good. I play classical recitals and rock gigs, and I always use the preamp. I use a SansAmp Paradriver with the 3000kHz range dialed out (it has parametric EQ which lets you select a frequency that is too shrill and lower or drop it out). It gives me a warm sound when I want it, and by pushing the bass and treble up to full it adds awesome tone for rock.
Then I run it into anything - guitar amps, PA systems etc - because I have already fixed my sound.
But my personal favourites are the German made HK-Audio PA with a small bass bin and 2 small satellite speakers for when I want a real violin sound or a huge range of tones (especially with a distortion pedal, or an octave pedal set to drop 2 ctaves down), or my Fender Blues Junior all valve combo amp which is a rock amp with real tone.
For FX I use SansAmp GT2 overdrive and amp simulator for creamy warm Mesa Boogie drive to edgy biting Marshall cabinet sounds, and from there a bunch of Electro-Harmonix pedals. I use the POG2 multi octave pedal, Cathedral Reverb, Memory Man delay, Pulsar tremelo, the Q-Tron+, and the Poly Chorus.
The tones are awesome. Have a listen on my page.
Hope that is some help.
small Kustom tube amp with a Celestion speaker.
Updating my previous sharing on amps. I still use my pre-amp and FX chain as I last described and more recently I have been using a highly portable Yamaha MSR 250 PA powered speaker (with horn and woofer) which has a handy mixer in the back as well. The tone is warm and true for classical acoustic and rock. I had been using the Fender Blues Junior valve amp for my blues and rock bands. But The Fender missed the sweetness of the PA and the PA missed the grunt of the Fender. So a local music shop had a great idea and sold me footswitch known as an A-B-Y box - it allows me to switch between the amps OR run them both together just with the click of a button the the footswitch. The result is awesome. The only issue is that the louder bands drown out the Yamaha MSR 250W amp, so I bought the MSR 400W (big brother to the 250W version) and it is proving to be a more equal match for the Fender amp and the overall volume of the louder bands. I pretty much run it on both amps all the time now for the rock and blues, I get the perfect blend of tone. You can hear some of the gigs using the sweet sounding little Yamaha MSR 250 here