Sorry should have said I'm using a Klein in the loop and a slightly oversized semi-open back 1x12 cab with an older EVM12L - I've had the amp for over two years so it should be well broken in by now. Everything on the amp is stock apart from the preamp tubes which I changed for nos Brimar, Tungsol and Sovtek LPS in V1,2 & 3 respectively - just finding it hard to get the OD side louder or punchier than the clean side at gig volume. Think I'll back off on the gain for next gig and see how it does...
Thanks for the tips so far