I've heard cheap speakers (made in China) that sounded decent with subwoofers - sounded at least as good as many "Pro speakers" and other relatively inexpensive speakers.
I think the key is having good bass, which the subs can fix.
Would they subjectively sound better if they had pretty cabinets that cost $2K? Probably.
Would they subjectively sound even better if they had both $2K cabinets and FR that is +/-2dB? You bet!
