subwoofer for pm6004
i own 2 B&W M1's, it's connected to a marantz pm6004.
as you al know, the M1's don't produce any subsound, so i was searching for a suitable subwoofer.
i was told that there are subwoofer who block the highs and only let the low's through, is that true?
and what about the requirements?high level input and low level input and so on?