I don't see why they would not play "metal". The speakers can play very loud, louder then I ever push them with my with 200 watt amp. I have on occasion cranked up jazz and classical to uncomfortable levels for my own enjoyment/entertainment or at the request of visitors. Seems to play well, bass is strong and tight but not earth shaking. No idea what SPL that would equate to, if the speakers were pushed back into the corners I am sure it would be even louder. I am afraid that 100+ dB of Metallica is not something I strive for or have been requested to reproduce.

Sorry,

Martin