ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: [1]   Go Down

Author Topic: How use phase adjustment on dr260  (Read 2019 times)

sam jashan

  • Newbie
  • *
  • Offline Offline
  • Posts: 1
How use phase adjustment on dr260
« on: February 17, 2012, 09:41:18 am »

Hello everyone; I have 2 jbl srx725's that sit on top of some double 18" subs. It seems like the sound is not working together (the system is not performing to it's potential). It seems like I may have some comb filtering problems????
Every time I play with the phase adjustment on the subs, things change, but it's hard to get the result I want. Does anyone have any tips on how to get use the phase adjustment on the drive rack 260??
Logged

Doug Fowler

  • Member since May 1995, 2nd poster on original LAB, moderator on and off since 1997, now running TurboMOD v1.826
  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1666
  • Saint Louis, MO USA
Re: How use phase adjustment on dr260
« Reply #1 on: February 17, 2012, 03:47:47 pm »

Hello everyone; I have 2 jbl srx725's that sit on top of some double 18" subs. It seems like the sound is not working together (the system is not performing to it's potential). It seems like I may have some comb filtering problems????
Every time I play with the phase adjustment on the subs, things change, but it's hard to get the result I want. Does anyone have any tips on how to get use the phase adjustment on the drive rack 260??

What are your crossover settings for sub and LF?
Logged
"It's got electrolytes.  It's got what plants crave."

Charlie Zureki

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1244
  • South Eastern Michigan (near Windsor)
Re: How use phase adjustment on dr260
« Reply #2 on: February 18, 2012, 10:01:43 am »

Hello everyone; I have 2 jbl srx725's that sit on top of some double 18" subs. It seems like the sound is not working together (the system is not performing to it's potential). It seems like I may have some comb filtering problems????
Every time I play with the phase adjustment on the subs, things change, but it's hard to get the result I want. Does anyone have any tips on how to get use the phase adjustment on the drive rack 260??

   Hello,

   It might be helpful to list the make/model of the subs and amplifiers you're using/ intending to use.  What are the current settings on the processor now?   What is it that you're hearing, exactly?   What is the result that you're "trying" to get ?

  Are you certain that: 
     #1  you've  not gotten  the settings on the processor wrong ... Crossover, delays, etc...
     #2  That the speaker cables to the sub from the amp(s) are not terminated properly ?  mis-wired...and that the "polarity" is wrong on either the sub end, or the amplifier end ?

     #3 That the signal cables (XLR) going from the output of the mixer to the input of the processor have continuity and that the polarity is correct from end to end ?

     #4 That the subs (you did not mention make/model) are inferior and cannot possibly keep up with the JBL tops...and/or are using too small of an amp ?

     #5 That you're expecting waaayyyyy too much from these un-named subs, and, that you really need to ADD subs and amplifiers for the bottom end that you're seeking ? 

     #6 That the problems you're having are either all, or a combination of many of the above reasons that this "system" is not meeting your expectations ?


     What do you think is the definition of "Comb filtering" ?  Did you operate one sub at a time...and then switch the cabling to the other sub doing a comparison ?

  The many times I've been called to trouble-shoot someone's system based on similar complaints....it was that one sub was wired in opposite polarity... or, that they were expecting their subs to bring the walls down...and, what they really needed was more amps and subs.

   Hammer
   
« Last Edit: February 18, 2012, 11:23:05 pm by Charlie Zureki »
Logged
Do it the right way....don't be a Dino!
Pages: [1]   Go Up
 


Page created in 0.044 seconds with 21 queries.