how to include the subwoofer?

Thanks Lev. Yes my volume settings on the DD12 are right where yours are. From a volume perspective it is "barely being used" but that little bit of volume does great things for the sound (after a lot of time getting the parameters tweaked properly).

Very good answers. The NHT X2 is surprisingly transparent for it's price and, in my case, cleaned up the crossover area. Beyond that, the difference it made was less than changing a single pair of cables.

Dgaylin,

If you're looking to maintain the "purity" of the main signal path,
what are your choices?

I can pretty much assure you that the high pass in the NHT is less audible
(and much more flexible) than the high pass in the SMS-1 as I have
extensively A-B'd the two. The Velo ain't terrible, but I knew it was there.
Also, the added flexibility of the NHT allowed for a better crossover function,
as I can high pass at my chosen turnover frequency and steeper slope than
the SMS allows. So, what can you do?

1) Use the active x-over of your choice (you might be more comfortable re:
transparency in the main path with Bryston or Marchand, but there's the $
issue) or

2) Run the Curves full range, bypassing the DD's high pass and try to
"snug up" the DD from below, using only it's internal high cut
filter. You might get a good x-over function, but you've blown the
opportunity to maximize the benefit of the DRC.

My point is: Cable adaptors won't improve "purity" in the main
path (DD's high cut ain't great) unless you forgo DRC (low x-over point). If
your question is: "Is DRC worth some slight (in my case, inaudible to me)
degradation of the main signal path?", my answer would be "Without
Question, Yes, Yes, Yes"

OTOH, YMMV.

Marty

Dgaylin,

Sorry I missed your intervening post re: the smooth bass response you're already getting from the Curves. My room makes such a result impossible. So, as Emily Litella once so aptly put it "Oh...never mind".

Marty

Hey Marty, no apologies necessary -- I appreciated your additional post. But actually, running the Curves full range and using the Velodyne it is still possible to get some benefit from the DRC in the Velodyne. By setting the low pass in the Velodyne to around 100, it actually reinforces the Curve's bass response below this level (and of course handles the low bass where the Curves drop out). As a result the main system is playing at lower volume to prduce a desired loudness. With the sub producing some part of the loudness, it is possible to tune the bass response of the room using the DRC in the sub. True, I'm not affecting what the Curves are doing at all, but according to the SMS software the response is considerably flatter than just running the Curves full range without the sub. Maybe someone will tell me this is sonically impossible, but I don't think so -- and unless the measurement microphone software (and my ears) are lying, it works.

I may try the external crossover still. But may wait to find a Bryston 10b. Or I may go ahead and try the X2. Still think about it.