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View Full Version : LE15B driver and L200 (Not L200L) -- Thiele / Small Parameters



TYO
01-27-2011, 03:14 PM
Hello,

I want to know "Thiele / Small Parameters" of JBL LE15B driver.

And more, if somebody tell me about drawing of L200 Enclosure, so I need it's details of capacity/volume and Bass-Reflex system.

Before studio monitor 4425's cross-over were 1,200 Hz, it was no good for LE15B woofer I'm thinking.
Now I'm planning 500 Hz smith horn (Cut-off). X-over is 500 Hz.
Maybe horn is too bigger, but maybe sound is smooth.
Driver is LE85.

If you knows about above, tell me ASAP.

Very best regards,
Moto:)

Robh3606
01-27-2011, 03:32 PM
Hello Moto

If you are referring to the LE-15 with a pleated surround, the 2216 used in the 4325 monitor, then you may be out of luck. The 2216 driver is not listed in the T/S tables. It looks like they never published them for that driver.

Rob:)

pos
01-27-2011, 11:09 PM
Here (http://www.audioheritage.org/vbulletin/showthread.php?24177-1975-Catalog&p=242918&viewfull=1#post242918) you will find some info about the LE15B/2216 (thanks to Rob!). I attached the relevant part to this post. That is not T/S but this is all that was available at that time.
You need to add 49dB to the sensitivity figures to get the 1w/1m value. (so that is 96dB for the 2216).

The L200 cabs are 140L I believe. Zilch must know that, as well as the tuning frequency, as he played with them quite extensively.

500Hz seems quite low for a smith horn (if not bigger than a 2397), especially with a LE85.
800Hz would be better