I cannot say for other than EP500, but that one is incredible for music. You should hear double-bass, theorbe or pipe organ! It is quite simply superb. It is a very, very fast sub and nearly linear (+/- 1db down to 18hz).
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E = MC2 = ((2M80 + VP180 + 4QS8)/(EP800 + EP500))^(ADA1500 x D2v)
Audiobytes! 2M22! 2VP150!