ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: [1]   Go Down

Author Topic: Best way to employ 16 to 18 lab subs  (Read 2855 times)

Martin Bilecki

  • Newbie
  • *
  • Offline Offline
  • Posts: 28
    • WWW.PerformanceSound.com
Best way to employ 16 to 18 lab subs
« on: August 08, 2011, 09:20:08 pm »

I am looking for some insight as to the best way to employ 16 to 18 lab subs at an outdoor rock show on a 40 foot deck ..   

 I have an EAw ux 8800   with 4 ins and 8 outs for sub processing and 6 PL340 QSc amps //...   

Blocks of 4 mouth to mouth with equal spacing and delay from in to out ???

Please don't make me stack 9 per side and have that power alley and nulls to deal with 

HELP  !!!!
Logged

Mac Kerr

  • Old enough to know better
  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 5610
  • Audio Plumber
Re: Best way to employ 16 to 18 lab subs
« Reply #1 on: August 08, 2011, 09:48:28 pm »

I am looking for some insight as to the best way to employ 16 to 18 lab subs at an outdoor rock show on a 40 foot deck ..   

 I have an EAw ux 8800   with 4 ins and 8 outs for sub processing and 6 PL340 QSc amps //...   

Blocks of 4 mouth to mouth with equal spacing and delay from in to out ???

Please don't make me stack 9 per side and have that power alley and nulls to deal with 

HELP  !!!!

In his talk at the LAB Expo this year Dave Rat talked about a modified end fire array that used 1 (in your case 2) subs as the rear element to 2 or 3 other arrays an each side of the stage. By creating a wide cardioid pattern on each side the power ally summation was reduced by the amount the cardioid pattern falls off in the center. Using 2 LAB Subs as a block, 2 subs facing forward, 2 subs 45 out, and 2 subs 90 out, with 2 subs at the focal point of the 3 sub blocks, with the 6 front subs delayed to match the 2 rear subs will simulate Dave's concept as I remember it. If anyone remembers it differently or better, please chime in.

Mac
« Last Edit: August 10, 2011, 03:16:27 pm by Mac Kerr »
Logged

Jay Barracato

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1809
  • Solomons, MD
Re: Best way to employ 16 to 18 lab subs
« Reply #2 on: August 10, 2011, 12:59:41 pm »

I am looking for some insight as to the best way to employ 16 to 18 lab subs at an outdoor rock show on a 40 foot deck ..   

 I have an EAw ux 8800   with 4 ins and 8 outs for sub processing and 6 PL340 QSc amps //...   

Blocks of 4 mouth to mouth with equal spacing and delay from in to out ???

Please don't make me stack 9 per side and have that power alley and nulls to deal with 

HELP  !!!!

Here is one of Dave Rat's blogs:

http://www.ratsound.com/cblog/archives/335-More-Homework.html

I just can't help but thinking that 18 lab subs stacked together would be bigger than some of the stages I have seen recently.
Logged
Jay Barracato

John Roberts {JR}

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 15560
  • Hickory, Mississippi, USA
    • Resotune
Re: Best way to employ 16 to 18 lab subs
« Reply #3 on: August 10, 2011, 01:31:26 pm »

From a distance.

JR
Logged
On the internet people tell you everything "they" know, not the answer to "your" question.

Martin Bilecki

  • Newbie
  • *
  • Offline Offline
  • Posts: 28
    • WWW.PerformanceSound.com
Re: Best way to employ 16 to 18 lab subs
« Reply #4 on: August 10, 2011, 02:51:19 pm »

From a distance.

JR

Ha    Hickory Miss!????     I have family in Petal  !!!!!!    A couple transplanted Chicagoan's   !!!!!
Logged
Pages: [1]   Go Up
 


Page created in 0.116 seconds with 21 queries.