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jbl4ever
01-07-2006, 11:48 PM
I have 8 Le15A's I would like to use in a 4 way system. 4 per cabinet,size not to important. Like 24 to 30 cu.ft per enclosure. Midbass will be 2202 or 2220. I dont know if JBL quad array would be good as the biamp frequency between 200-300 Hz. Probably more like 200hz with the 2220 dont think the 2202 will keep up with them. Was thinking a 2 by 3 pattern. Your thoughts will be helpful. Thanks

slxrti
01-08-2006, 01:10 AM
I have 8 Le15A's I would like to use in a 4 way system. 4 per cabinet,size not to important. Like 24 to 30 cu.ft per enclosure. Midbass will be 2202 or 2220. I dont know if JBL quad array would be good as the biamp frequency between 200-300 Hz. Probably more like 200hz with the 2220 dont think the 2202 will keep up with them. Was thinking a 2 by 3 pattern. Your thoughts will be helpful. Thanks

May I ask where will this be installed?


slxrti

Ian Mackenzie
01-08-2006, 02:46 AM
Go check out Drew's clues.

You will need to play with it a bit a see what integrates best.

The problem will be that unless the LE15's are loaded in the end's of their individual enclosures or somehow stacked tight they will so spread out you will end up with all sorts of coupling and lobe issues that you will need to cross them over much lower.

Something like a 4350 inverted with a second set of woofers atop might be interesting.

Robh3606
01-08-2006, 07:56 AM
Why not use the diamond quad confuguration JBL uses on the large cinema boxes. If it works for 2226's as long as the box size is still manageable it may not hurt to look into the box. See if they have polar or DI plots to see what you can get away with. Mike Baker had a pair you may want to PM him.

http://www.audioheritage.org/photopost/showphoto.php?photo=18&sort=1&cat=500&page=3

Those cabinets are huge. Those are a pair of 3115's up top.

Rob:)