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Using 4 KW153's
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DJIceman97
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As stated, what's the easiest way you guys have found to use 4 speakers, namely the KW153's (which have a 75* x 75* dispersion) together, 2 per side, with the least comb filtering and drop outs? (Some points, there is a huge HF drop out)
gadget69
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I think I ended up with the fronts about 6" apart (with the backs together... though you can use the center line between the 2 speakers and set a 75deg splay to the pair. I didn't measure only listened critically and found that pleasing back 200 feet or more.

The HF has a tendency to break up and be harsh when pushed.. I think the amp is running out of gas...

Nice speakers if they provide the coverage and SPL your looking for.
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rockstardave
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according to the QSC pdf - they are not supposed to be arrayed except to give additional coverage AREA (different from additional coverage VOLUME).

so if you need it louder, you should look at a different speaker. in practice - i've done it and it sounds ok.

http://qschouseofk.com/files/9213/2935/3542/hok-app-guide-rental.pdf -> page 7
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mwright137
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From his reference to page 7 above :

Figure 3: When arraying two KW152 or KW153 boxes, avoid hard packing the sidewalls as this will
create overlapping energy which will result in severe comb-filtering through the listening area.
Instead, use a wider splay between boxes to minimize overlapping energy.


In the figure, they show the backs of the speakers touching and the fronts spread apart, probably about 6 inches as gadget mentioned.

You could prubably use some trigonometry to figure out the spacing. The dispersion is 75 degrees, so you have 37.5 degrees at each side. you just need to figure out the separation that makes the dispersion angle parallel as in the figure. Or just get it pretty close...
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gadget69
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Yup, just like I said...
NOTE: If your having an issue, open a tech support ticket and bring the number here if you want help!
http://support.presonus.com

Tools:
OHCI tool and Latency mon:
http://forums.presonus.com/posts/list/11348.page

We, the few, that have done so much, for so long that now we can do everyything with nothing

dbx forum moderator

Lenova Ideapad Z565
Best connectivity Express card/firewire 2 port (400) that does NOT suggest having the TI chipset. (always worked great)
BYTECC Express card (400/800)07150358281

Asus/AMD processor tower. This setups just works on all firewire devices.

Belkin N450 dual band router, works with SL and Ai mixers
Studiolive 16:4:2
SL Ai24.4.2
ABUSB 1818VSL
Faderport
USB pre interface
Studio one Pro V2
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DJIceman97
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Looks like that's my best option then...thanks guys, I'll play with them tomorrow and see what I can come up with.
TimmyP1955
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With most speakers, the dispersion is as specified over only a very narrow frequency range. As such, you should experiment with splay and let your ears decide what's best.
http://www.padrick.net/TP_Audio.htm
 
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