Thought I would update as currently using the Hartke gear for its first tour!
Firstly, I'm not sure if this a first for me but I have voluntarily turned the amp down on stage, I think I'm running it at just below three on the dial. Huge amounts of volume and only using a single 4x10 HL cab. Playing from Concert Halls to club shows.
Running with the tweeter off, bass at 3 , mid at 5 and treble at about 2 is giving me a very full,warm tone that really bites and gets aggressive when I dig in which is perfect as the set is pretty dynamic. Really love the high end the speakers deliver, it really just helps you sit in the mix and still hear the definition of your playing on stage.
I'm running my Spector in the passive input with a very slight boost of treble and bass on the onboard preamp, just sounds like that little bit extra push really gets the amp working.