Eminence Beta 15CX

Discussion in 'Amps and Cabs [BG]' started by thumbtrap, Jul 23, 2003.

  1. thumbtrap


    Jun 26, 2003
    Just a curiosity question, but this driver sticks out to me when sorting through the spreadsheet again and again. I'm not planning on building anything with it (though the 8cx looks useful for wedges)- but it has my curiosity up.

    What the heck is it good for? (Say it again yall)

    The ABSOLUTE SMALLEST configuration it appears to go in is 18ft^3 for B2 sealed. This appears to mean that its intended for an infinite baffle cabinet, but with a Qtc of .54 - it'd be a bit on the weak side. The coax tweeter implies to me that it's meant for some kind of professional sound reinforcement, but that stuff is usually optimized on size, unless it's built in.
  2. Petebass


    Dec 22, 2002
    QLD Australia
    Makes you wonder how Eminence came up with a recommeded enclosure size of batween 1.9 and 3.9 ft^3 (as per their website). 18ft^3 is too big to be of any use for anything.
  3. thumbtrap


    Jun 26, 2003
    I see now. The various classic alignments all blow up on this driver, but it will work in as little as 1.9ft - with a 3db hump at 110hz for Qtc of 1.37. Something you'd never know trying to sort it out from the thousand drivers in the spreadsheet.
    Perhaps a bit underdamped, but it wouldn't be the first to make it off the factory floor like that. I just saw those figures and the performance did not appear to justify the requirements.
  4. It's a PA system driver. You can stick it in a small box and cut the nuts off the bottom end, and not care because it is handling voice and higher.

    Try the PAS CX-1580C. It is a MUCH better driver. The Eminence Beta series is low end.