This reminds me of one '80s Agnostic Front show I saw that was "musically" impeccable-- nothing but an almost tangible morass of thick, gnarly fuzz punctuated by an insistent machinegun snaredrum-- but produced a ringing that didn't leave my ears for several days after. Somehow, apparently, my hearing survived, but I don't think I'd want to be chancing it nowadays, at least not without some serious ear protection.