1. Welcome to TalkBass 2014! If you're new here, we just went through a major site upgrade. Please post all concerns and bugs to the Forum Usage Issues forum. We will be monitoring that forum. Thank you for all of your feedback.

    The TalkBass iphone/android app is NOT WORKING currently. We're working on it. Tapatalk IS working, so if you need to use an app, use Tapatalk. Try using your browser though - TalkBass is now 100% responsive to your phone/tablet screen size ;)

    Please read the TalkBass 2014 FAQ for lots of great info on the new software.

3012HO build: help with high freq driver

Discussion in 'Amps [BG]' started by kucor, Feb 26, 2012.

  1. kucor

    kucor

    Joined:
    Aug 26, 2011
    Likes Received:
    0
    Hi,

    I just bought two kappalite 3012HOs, and plan is to build two boxes in Epifani UL112 style, which means simple two way vented enclosure, 2 cu. ft. net.

    Idea was not to use twitter but some mid-high which will do spectrum from ~1,5 to 6-7KHz. I don't really see need for 10Khz or higher for bass guitar.

    I'm not really sure what is best high cut off frequency for 3012HO, so some advice with crossover frequency and choosing the second driver would be appreciated

    thanks,

    Slobodan

    http://www.eminence.com/pdf/Kappalite_3012HO.pdf
  2. will33

    will33

    Joined:
    May 22, 2006
    Likes Received:
    6
    Disclosures:
    Use of this field for any other purpose is prohibited
    Couple ways to go about it. For the widest dispersion, off axis performance, you can cross to a 6" around 1-1.6khz. Or, choose an HF driver that can handle a 2-2.5khz crossover point and do it that way. Selenium has some nice ones. The Emi. asd1001 can handle 2500hz as well. If you don't need the real high response, plenty of 6's can run to 5-7khz on axis.
  3. rogypop

    rogypop

    Joined:
    Jan 10, 2009
    Likes Received:
    0
    3012ho is perfectly capable going to 1.5 khz, my choice would be
    eminence NSD-2005 compression driver with apt 150 horn.
  4. jnewmark

    jnewmark Supporting Member

    Joined:
    Aug 31, 2006
    Likes Received:
    1
    Not quite the same, but I have a 3012HO, 212, with an 18Sound XD125 horn, crossed at 2khz, Works for me.
  5. kucor

    kucor

    Joined:
    Aug 26, 2011
    Likes Received:
    0
    thanks for answers guys:)

    so, 1,6Khz should be max for 3012HO?

    I would like to avoid 6" mid. It doesn't fit into my idea of portable 12" cab

    Yeah, those PSD snd NSDs are nice, but well priced as well, ~140 euro for NSD2005. to much for me at this time.
  6. will33

    will33

    Joined:
    May 22, 2006
    Likes Received:
    6
    Disclosures:
    Use of this field for any other purpose is prohibited
    Above that is where you're really gonna noticably lose response off axis. On axis, it'll run high enough to meet a good tweeter.
  7. rogypop

    rogypop

    Joined:
    Jan 10, 2009
    Likes Received:
    0
    You COULD use eminence apt 80 and cross it around 1.8khz but it would require 3rd or even 4th order hi pass filter. Me thinks that Barefaced midget T uses 3012HO and apt 80.
  8. kucor

    kucor

    Joined:
    Aug 26, 2011
    Likes Received:
    0
    Hi again, some time has passed, and due to lack of funds, all I done is a simple 12" cab with no additional drivers.

    Now I'm back and wanna finish this project finally.

    I figured single 3012HO lacks in low end, so idea is to put both in single 3-3,5 cu ft cab, with additional horn.

    thinking about NSD2005, APT150S horn and PXB2 crossover at 1,6KHz, but I saw someone saying NSD2005 is a overkill for bass cabs.

    any thoughts or suggestions?
  9. kucor

    kucor

    Joined:
    Aug 26, 2011
    Likes Received:
    0

Share This Page