WM8 Bassis and BF Destroyer. What's the diff?

Discussion in 'Archived Threads 2001-2004' started by Martice, Nov 9, 2001.

  1. Martice

    Martice Screenwriter

    Jan 20, 2001
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    Can someone clarify what the main differences are between the WM8 Bassis unit and the BF Destroyer? They seem similar in capability but I couldn't come up with a definitive conclusion on the tradeoffs. Applications would be for subwoofer control.
    What if it gets no better than this!?!
  2. BruceD

    BruceD Screenwriter

    Apr 12, 1999
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    The Bassis only has 4 rotary controls per channel, I have a BFD and it's a stereo unit with 12 parametric filters per channel. More may be better at killing peaks (room modes).
    The bassis does have a rumble filter the BFD doesn't. I have not found this to be a problem for me, even with a turntable.
    The BFD does an A/D on the input then performs filtering in the digital domain then a D/A on the output, while the Basis stays in analog the whole time.
    Each channel can be set individually and differently (in case you have 2 subs).
    Each filter can be set to a bandwidth (Q) as small as 1/60 octave, great for killing those peaks.
    The BFD can also be operated from a PC through a MIDI cable connection.
    By the way, I do have a Marchand XM9-L crossover between my mains and sub, and the BFD is inserted between the xover and my sub (i.e. it's nowhere near the signal path of my mains).
    [Edited last by BruceD on November 09, 2001 at 09:01 AM]
    [Edited last by BruceD on November 09, 2001 at 09:02 AM]
    [Edited last by BruceD on November 09, 2001 at 09:04 AM]
  3. Brian Bunge

    Brian Bunge Producer

    Sep 11, 2000
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    The Marchand BASSIS unit and the BFD are really different animals. The BFD is a parametric EQ whereas the BASSIS is an adjustable Linkwitz Transform Circuit. The BASSIS will allow you to lower the low frequency response of a sealed enclosure by adding boost but at the same time you can adjust the Qtc of the entire system.
    So I don't think you can really compare the two. Actually, when I get my huge 18" sub built I'll use either the BASSIS unit or a custom built LT circuit strictly for my sub AND a BFD (to tame any peaks).

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