Re: Article: Stair Cardioid Subwoofer Array
I hope it's ok to post a few links to some sub array's i did during a few seminars i did last year @Sebastian Rivas.
These are end fired configurations where i measured the level and frequency response in the back of the array per part of the array in order to get max cancels at the back when tuning the array.
http://timobeckmangeluid.files.wordpress.com/2013/08/img_1665.jpg
An article at my blog on a gradient set-up where i use 2 subs at the front and 1 at the back:
Gradient or reversed end fired sub array first with delay then with All-pass filters Updated 04-09-2013 . | Timo's World all around the globe
and a end fired where i first used delay and after that the same thing but with allpass filters:
End fired sub array first with delay then with 2nd order all-pass filters | Timo's World all around the globe
So in order to get the level to match at the back of the cardioide array i put in more subs at the front row. After that match frequency response of sections of the array and then start to align via delay or allpass filters to get the max cancel at the back and max level in front of the array. It's about the same as described in the article. (the end fired of 6 is an idea coming from the guy's @ ampco pro rent from the netherlands as far as i know
