Connecting Multiple Speakers/Subs
Results 1 to 7 of 7
  1. #1

    Default Connecting Multiple Speakers/Subs

    Im using a Numark Mixdeck, two powered subs (1 EV, 1 JBL), two powered tops, two unpowered Peavey SP15, and a QSC amp.

    Whe I run my tops thru my subs, the side with the EV sub is great, but the side with the JBL sub I can barely hear anything, especially out of the Top. I will post a pic in a sec. I must have something connected wrong, or the EV is whipping the JBL ass.

    Please help

  2. #2
    Tech Guru robdquick's Avatar
    Join Date
    Aug 2011
    Location
    Bristol, UK
    Posts
    590

    Default

    How are you connecting this all up?? If we knew how you connected it up we would have a better chance at diagnosing your problem.
    Mobile DJ. 2 x Denon SC2900, Denon MC-6000 MK2, Wharfedale Titan 15a Powered Speakers, Titan A15 Subs, HP laptop. Shed load of lights!! Maschine Mikro MK2, Xone:K2.

    2nd Generation Mobile DJ
    2G on Twitter | 2G on Facebook
    | RobDQuick On Soundcloud


  3. #3
    Tech Guru VanGogo's Avatar
    Join Date
    Mar 2010
    Location
    L.A. (lower Alabama)
    Posts
    1,918

    Default

    Does the JBL sub have a crossover, and is it set correctly?

  4. #4

    Default

    you need a crossover to send the mixer output to the diff amps set at diff frequencies. u need to go mixer output-> crossover -> then have the frequency set for ur tops and sub and passives. do NOT have your active speakers plugged into the amp, and an active speaker can be seen as having a built in amp

  5. #5
    Tech Guru VanGogo's Avatar
    Join Date
    Mar 2010
    Location
    L.A. (lower Alabama)
    Posts
    1,918

    Default

    I would assume the powered sub would have a crossover. Then it would be out put from sub to amp to passive speakers, or out put from sub to active (powered) speakers.
    But, we really can't help with out more details.

  6. #6
    Tech Mentor HighTopFade's Avatar
    Join Date
    Oct 2011
    Location
    Daly City
    Posts
    412

    Default

    If this is your regular PA system, you might want to look into a balanced distribution amp if your mixer only has one pair (left and right) of balanced outputs. Maybe there are crossovers / processors that perform the same task and more.
    Last edited by HighTopFade; 07-18-2013 at 05:54 PM. Reason: spelling
    Used Record Shopper

  7. #7
    Tech Convert
    Join Date
    Feb 2013
    Posts
    18

    Default

    you need to isolate the problem in the signal chain. Switch around the connections to see what works, what doesnt, and eventually identify the issue(s).

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •