It may be the underlayment but it looks pretty new. The picture is a little misleading. The flash makes the cutouts for the woofer and tweeter visible but under normal lighting, it's quite opaque. I may go for
IIRC the speaker grill fabric was designed to be part of the 'tuning' of the Advents... cut down the highs a bit... :scratch2: I believe it was in the Advent tests that Zilch did last year.
You may prefer them the way they are though.:yes: