And I would boost 250 hz to get more punch and 1000 Hz for more clarity or definition.
But I did start the thread by asking what punch is so maybe I am off base
Nah, I think we just all have our own ideas about what it is. I think it really depends a lot on the cab, too.
I feel like the 800-1200 range does add clarity and attack which is part of my definition of punch. It also helps with presence in the mix, so win-win-win. (Of course, attack has more to do with the plucking/picking technique, and is an important part of getting a punchy sound.)
I have a WD-800, and I have played around with the parametric EQ quite a bit. I have found that I have to tweak the EQ to get punch, depending on what I play through. I pretty much always have a little bump @ 1000, just to sit better in the mix.
Our rehearsal space has an old Ampeg 215. It is thunderous and really old school. But I have found that to get punch out of that cab, I turn up the HPF, and cut ~180-200 to get rid of mud, and I give the 800-1000 a little more of a boost, and I get good punchy bass.
When I play through my GK 212, I dial the 200 range back up, as I get a fuller sound and I can't find mud in that cab unless I get crazy with the EQ (HPF all the way down, extreme bumps @ 80 and 200, cut high mids, and there's muddy, punchless bass even in that cab).
I think that's the thing about trying to define our nebulous lexicon. For me, punch is in the way it hits you. Like the Tyson analogy that @db59 so succinctly contributed. You feel it hit, it's right there, not overpowering the other instruments but definitely standing strong in the mix.