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Old 13th June 2010, 03:57 PM   #1
Legis is offline Legis  Finland
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Default U-frame line array subs with BMS's woofers

Hi,

I'm planning to build a u-frame line array subs consisting of 4x 18 inch woofers per side.

I have been looking at BMS's woofers:

18N860: http://bmsspeakers.com/fileadmin/bms...2010-03-18.pdf

18S430v2: http://bmsspeakers.com/fileadmin/bms...0v2_t_data.pdf

Woofers are advertised to have a low distortion, and from the pictures their motor seems to be vented properly which could indicate that the motor has a low operation noise.

Does anybody have some experience with these woofers?
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Old 14th June 2010, 08:26 AM   #2
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Nope, though for dipole use, many favour high Qts drivers (around 1, maybe a little higher).

Perhaps it'd be worth searching for something that fits the bill better.
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Old 14th June 2010, 08:47 AM   #3
Legis is offline Legis  Finland
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I intend to use a DCX2496 to equalize the room response (= mainly boost low freqs), high q-value is therefore useless, and it's only an indicator for a sloppy motor system with weak magnet.

I will also continue my project at some point and will monopolize or make a cardioid out of some of those woofers, this kind of planned versatility also calls for "universal woofer".

By the way, the frames are ready:

Click the image to open in full size.


My current apartment does not allow me to move the frames further from the front wall. Therefore I have to set the crossovers low and/or boost the lowest freqs quite a bit.
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