I turned off every tweeter I could for each band at a house tech gig for two months, and not one noticed, including the house band's bassist, who didn't notice it was off the entire time. When I pointed out that the knob was in the wrong position, he of course noticed the difference when I pretended to turn it up (which I didn't at first).
WTH???

:scowl:
They probably knew something was not right but getting the music right was more important than messing with equipment that SHOULD have been set to their liking.
Dude is lucky he didn't get caught, and suffer whatever consequences there might have been for getting caught. Just cuz one guy didn't notice doesn't mean nobody else would. Likely others did, but didn't have time to track down the problem mid-set, and later maybe assumed the knob got bumped or something rather than some dude intentionally jacking with their stuff.
I would notice immediately. I adjust it for different songs, even. (Off for heavy distorted stuff and most tunes, somewhere between 10-20% for a few tunes, 40-60% for some synthy bits, 75% or more for full range sample playback. More or less, anyway.)
First note of first tune in current setlist includes a sample from a looper. No tweet = total suck, and I'd be looking to have a nice friendly little chat with the dude responsible if he managed to pull that little stunt between load-in (usually checked/set then) and start of set. The opposite could be true too... if I start with crazy distortion, I probably want it off. If some sound monkey with a tweeter fetish came by and cranked it up without me knowing, they just might damage it.
I'm reasonable enough to turn a knob for somebody if they ask, and the request is sensible, for the purpose of making everything sound good for the crowd. But...
DO. NOT. TOUCH. MY. STUFF.
Sorry to the OP about any derail. To bring it back on topic, yes... the cab happens to be a fEARful. Do it. You'll love it!
And despite your dislike of tweeters, you might even want to consider including one, just in case you ever end up doing things that could use it. I couldn't have predicted what I'm doing now, and originally ordered my build without it. (I'd always kept any tweeters turned off on previous rigs, cuz I hated how they sounded.) I'm so glad I changed my mind and had it added at not-quite-the-last-minute. Cuz here I am now tweaking that thing around like a happy toddler, almost as often as the tone knobs on my bass.
Or maybe just have the hole for one cut and plug it with a waveguide. Cheap, and makes it super easy to add if you change your mind.
You might even catch a rogue soundguy off guard, as he's searching around for the nonexistent attenuator in a sneaky and misguided attempt to turn it off for you.
