B&W CDM 1

nick_kraska · Post by **nick_kraska** » Tue Oct 07, 2003 3:24 am

hey all-
anyone using these speakers in the control room or otherwise? the separated tweeter design sure seems unique, but when listening to them, it really did focus the high end and really localized the place a lot more.

for you designer types - what are the benefits and disadvantages of pulling the tweeter out of the cabinet?
thanks,
nick

serge instrumental · Post by **serge instrumental** » Tue Oct 07, 2003 10:00 am

Would be nice to have a photo!

barefoot · Post by **barefoot** » Tue Oct 07, 2003 3:02 pm

Here's the web site. http://www.bwspeakers.com/index.cfm/fus ... 0CDM%201NT

And here's B&W's reasoning behind the separate tweeter. http://www.bwspeakers.com/index.cfm/fus ... D0B74745A0

Personally I think the diffraction argument is slightly bogus. There are certainly as many, if not more, diffraction and reflection issues with a separate tweeter as with a baffled tweeter. Aligning the acoustic centers does help with time coherency, but there are crossover alignments that can achieve similar results with a conventional layout. It's a valid approach, but with the advantages and drawbacks of this design I would call it a wash. B&W definitely makes it work very well, though.

The very best performance comes with flush mounting a conventional speaker.

Thomas