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Vifa DQ25SC16-04 versus Vifa BC25SC06-04? Jkim's poor man's tweeter options?

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  • Vifa DQ25SC16-04 versus Vifa BC25SC06-04? Jkim's poor man's tweeter options?

    How do these tweeters compare to each other?

    http://www.parts-express.com/pe/show...umber=264-1028

    http://www.madisoundspeakerstore.com...-dome-tweeter/

    Zaph's charts show very, very similar response.

    Thoughts on interchangeability of the tweeters? or how they sound, compared to each other?

    Basically, I have a pair of the horn loaded fabric domes, but I want to build Jay Kim's Poor Man's high fi monitor's...can I interchange tweeters?

    BTW: I have other tweeter options to use with the SB Acoustics 6.5"er...so I be interested in other published designs with other options tweeter


    Links to Jkim's build

    http://techtalk.parts-express.com/sh...d.php?t=212718

    http://techtalk.parts-express.com/sh...d.php?t=207805

  • #2
    Re: Vifa DQ25SC16-04 versus Vifa BC25SC06-04? Jkim's poor man's tweeter options?

    I took a look at Zaph's charts and was surprised. Toggling back and forth between the two on-axis graphs - I would think you could interchange them. The low frequency rolloff, sensitivity, and impedance are virtually identical. They probably use the same motor.

    The horn loading on the BC series might change the overall balance in-room due to different off-axis behavior, though - so if I had to hazard a guess, a little tweaking might be needed to get the best out of the BC's in that design.
    Keep an open mind, but don't let your brain fall out.

    Sehlin Sound Solutions

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    • #3
      Re: Vifa DQ25SC16-04 versus Vifa BC25SC06-04? Jkim's poor man's tweeter options?

      Another option you can investigate is putting one of them in a waveguide. Gainphile had good success with the DQ25 in a Monacor WG300.

      http://gainphile.blogspot.com/2010/1...y-dipoles.html

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      • #4
        Re: Vifa DQ25SC16-04 versus Vifa BC25SC06-04? Jkim's poor man's tweeter options?

        I tried switching out the DQ for the BC in on of Zaph's design because I had the baffles cut for the BC. This did not work at all. So I will modify the baffle for mounting of the DQ tweeter.

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        • #5
          Thezeek what happened - how far off was the BC?
          "...this is not a subwoofer" - Jeff Bagby ;)

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