DIY version of Martin Audio MLA??

[m R g S r]

MLA? Multi-cellular Loudspeaker Array. Martin Audio Ltd.
Check em out....I've heard them in line arrays and love the sound. Has anyone completed a DIY version of something like this? (a compact, all horn loaded 3 way top...only needs to play down to 180hz or so to match my TH18 subs)

[m R g S r]

Here are the specs on the Drivers:
LF 2 x12" (300mm)3" (75mm) voice coil, ultra-long
excursion, neodymium magnet drivers, Hybrid®
bass horn loaded
(from the rendering these appear to be B&C drivers...i think these...B&C 12NDL76 12" Neodymium Woofer Speaker Driver)

MF 2 x 6.5" (165mm)/2" (50mm) coil, neodymium
magnet drivers, horn loaded

HF 3 x 1" (25mm) exit neodymium magnet
compression drivers, horn loaded

[m R g S r]

Nothing huh?

[weltersys]

Originally Posted by m R g S r

MLA? Multi-cellular Loudspeaker Array. Martin Audio Ltd.
Check em out....I've heard them in line arrays and love the sound. Has anyone completed a DIY version of something like this? (a compact, all horn loaded 3 way top...only needs to play down to 180hz or so to match my TH18 subs)

A crossover at 180 Hz is a bad idea (even if the LF speaker sounds good that high) unless the LF speaker is elevated to the same height as the top cabinet, otherwise low vocals will be heard jumping between the cabinets.
If you want to leave LF on the ground and elevate the top cabinets, 100 Hz (125 max) is as high as one should go if sound quality is a concern.

The Martin design is meant for a long line, it is not at all appropriate as a single (or even 2 or 3 per side) cabinet solution.

If you want to pursue line array rather than point and shoot boxes, a small format line array would be more appropriate for club and theater size events.

Art

[m R g S r]

Hmm okay, it's true I heard them in 6 per corner, 4 corners total. Hanging about 30 feet overhead. So not at all a single per side. I just really enjoyed the sound setup I heard that day!! (also had 20 Martin 2x18 subs)