Aha! Well I've just got home from its first gig, so....
It has been an absolutely brilliant amp at home through the RM110 cab, but tonight I gigged it through my two Super Compacts and it was incredible.
For context, we are a wedding band so the usual pop/rock covers fare. In terms of tone I like a full, fat but punchy sound with a bit of bite when needed so I do tend to fiddle with drive controls on amps if they are there. That said we go through a PA and I DI via a SansAmp before my backline so it's more just for my own personal pleasure that I fiddle with my knob(s) really... Ahem.
Our first set tends to be less rock and more pop so I kept the drive control very low for this, occasionally pushing it for some of the 80s tunes. I kept the compressor off and the subharmonics thing on but so subtle you'd not notice (though I did wind it up for one song just for shits and giggles - it added a nice thickness without becoming silly and overpowering). I got a nice clean but creamy tone by leaving the EQ flat but a tiny boost on 240Hz; the bass sat beautifully in the mix.
Our second set becomes more rock centred so for this I spent a lot of time playing around with the drive control, setting it anywhere from around 9 o'clock to around 1 o'clock; I've likened this drive control to the drive control on the SansAmp and I stick by that now I've gigged the amp. At 9 o'clock there is a nice edge to the tone, by 1 o'clock you're in that delightful saturated valve amp territory and it sounds glorious. Dare I say it but I prefer this to the old valve drive on the ABM EVO II...
Volume wise I was never left wanting; the master got to about 10 o'clock and I didn't ever hear the amp go into that horrible squishy Class D clipping so I would expect I have headroom to spare. The gain control does have to be set quite high to get a strong signal into the preamp (I had it at 3 o'clock) but that is no bad thing. I was running my ACG in passive mode so would have had to drop the gain back a touch if going into active mode.
The only thing which wasn't good about the amp was the DI, which we tried just because we could. Apparently it was quite hissy - I suspect the high level of the gain control and a lack of ground lift may have had something to do with it. It doesn't bother me since (as I've already said) I DI pre-backline anyway so it wouldn't be used but if you wanted to record with it it might be an issue.
So all in all, I am well chuffed with it. An absolutely stonking amp (for me), just what I expected and more importantly hoped for. Couldn't be happier