RE: On my evo II, the compressor works after my liking, but the sub-octave is very slow to pick up the frequency - so much so that it gets to be an effect on its own on long notes - a quite nice effect I hasten to add.
Yes I like that effect, makes a nice "fat" sound.
I would prefer a Mark Bass but my use doesn't justify the expense.
I suspect I would like Hartke amps as my favorite pedal is their "Bass Attack", which borrows from their amp modelling technology-not sure about their speakers for my bluesy sound.
The only other that I fancy in the Ashdown price range is the Ampeg stuff because I like the sound.