Sorry only just got round to replying!
I used a Barefaced Super Compact and/or One10, both of which have been absolutely fine with other amps in the same band and venue setting. Unfortunately the Elf just always felt on the limiter and I had no real dynamic range left or, dare I say it, heft from the lower register. I’ve used the GK MB200 with the same band and cabs and had no problem, likewise a 30W valve head.
That being said I did manage a loud rock band gig with it and my SC with no PA support, it filled the bar fine and I suspect Joe Public had no idea. To me though it sounded very squashed and not really my thing.
Perhaps I’m too demanding with my EQ or (and?!) I hit the bass too hard but for me it was close, but not quite there to make it a keeper.
I think inretrospect I also like dialling in a little grit to my tone so of course needed an external pedal (in this case a SansAmp) to get the desired effect - the onboard dirt was too much.
I’m much more content with my Ashdown RM500 now - though of course that has more than double the RMS power supposedly