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East-West Line Array  

post #1 of 5
Thread Starter 
Work in progress diary.



Shortcut to pics only; {view pics in number sequence, ie 1.jpg, 2.jpg, 3.jpg etc.}
post #2 of 5
Good lord that is alot of drivers!

What amp(s) drive that beast?
post #3 of 5
Thread Starter 
I believe the plan is to use Behringer EP2500's. But it's a line array, you can
use a low powered amplifiers and it works fine, but the bigger amps gives you more
post #4 of 5
What's the target crossover point/slope for these beasts?
post #5 of 5
Thread Starter 
It's going to be an active setup using Behringer DCX2496 digital crossover,
so the user can tune the system as they please and/or program different settings
into the crossover and recall different parameters as needed. Active systems
are very flexible as you don't have to settle for 'one sound', you can create many
sounds depending on taste and mood.

My recommendation as a starting point is to use the LR-8th order slope,
and the crossover frequency for the tweeters/mids around 2khz plus or
minus 500hz. What you do is sweep the crossover frequency while listening to music
to find the sweet spot that makes you happy. I use 1.7khz in my PT2 array
and sometimes take it up to 2khz when I listen to heavy genre of music, to minimize
distortion at higher SPL.

The reason for LR 8th order slope is to allow a lower crossover point on the
tweeters for better imaging and the midwoofers will have nasty breakup
modes at higher crossover frequencies so it's best to keep a low crossover point
and using a steep slope for the best sound.

The midwoofers are ported so you can choose a high pass crossover point
that is appropriate for the design, then have your subwoofer take over from
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AVS › AVS Forum › Audio › DIY Speakers and Subs › East-West Line Array