Originally Posted by mudpup
Hartke LH1000 doesnt have an input gain control - just a volume knob.
Yeah that is one of the annoying parts about the LH1000 design that it doesn't have a separate master control especially with a tube pre. Though Hartke doesn't seem to go the full deal tube anyways at least the tube in my Hartke 2000 doesn't do much other than add a very slight mid range emphasis while softening the attack very mildly.
GK makes quality cabs so the problem lies in the bass and volume control.
What I would do is leave the EQ flat and then turn the volume up until the i heard the first bit of farting out. Then I would back the volume down until there was no farting out whatsoever. Once that level was set I would make minor EQ adjustments to taste (likely raising the mid control to cut through the mix but that is me). If the resulting eq adjustments caused more farting then turn the volume down some more to counteract.
There is no reason why that head and those cabs should not produce a usable result unless of course something is broken.