I put in a DCX2496 and EP4000 amps for the PA. The current subs survive only because I set the limiter pretty carefully, and the SoundFactor 25 mid/high boxes become audibly dull as the HF protection starts to bleed power away after a while. I agree that a $100 a night idiot DJ might do damage by accident, and a better DJ might do damage out of frustration with the equipment, but the way I have abused it on wall-to-wall busy Saturdays indicates that the current gear is not easily torn up with my configuration.
I am fairly confident that two SRX718S-alike boxes will provide more than adequate output to send the door man/designated volume cop rushing to yell at any idiot DJs if the bass anywhere near enough to damage 2268H drivers. Also there is only one 20A circuit for the whole PA so a breaker would trip before the voice coils got smoked. And I put the snake fan-tail in a location that causes most people to setup their FoH equidistant from the two subs, and the stage is basically a big bass trap below about 125Hz, so DJs sitting in either position should not need to fight with the PA to hear what they want to hear.
One thing I do not like about the way I have the existing equipment deployed is the SF25 horns are way brighter on-axis than at FoH if they are pointed the right direction to cover the room. That combined with insufficient height causes the HF to be painfully loud, so I often find myself fiddling with the PA's LPF knob and giving up on the high-end. But this is as much a product of the shitty speakers as anything else, and it will not get fixed until the owner realizes it is a problem in the first place.
If he would have spent the $8k I suggested he would not have these issues, but instead he spent $3k, so he gets what he paid for and will continue to waste money replacing crappy gear he shouldn't have bought.
I think we are getting a new snake next week, 16x8, to replace a 16x4 with 4 dead channels he had sitting in storage (owner used to be a DJ, which is part of the problem, he thinks he knows things sometimes.) I suggested a 24x8 because, for example, later this month we may have to do karaoke/band/karaoke/band due to a scheduling error on his part with a charity event that already spent money advertising "karaoke contest $100 prize" on a night when he booked band also. So he will probably spend $400 on a new EWI snake and within weeks of it getting here, we will have a night where I run out of channels and have to put up a second snake, or re-patch things several times unnecessarily, or do my karaoke crap from behind the PA, because he wants to save $100 and not buy the 24 channel snake. Go figure. Also, instead of paying $100 to convert 4 of the fan-tail returns to TRS connectors, he is going to buy $30 worth of XLR to TRS adapters. And buy them again 5 times a year as bands steal or lose them. And deal with the headache of calling me for help when bands show up and there are no adapters, because they are idiot bands that just expect TRS ends to plug right into the TRS jacks on their mixer, with no adapters, patch panels, or outboard.
Sorry for the rant, just to give you an idea of how this situation is, "buy once, cry once" is a concept he refuses to learn.