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I am too uncomfortable with my woodworking skills and my lack of the right drills, saws etc. to want to attempt to cut into these beautiful cabs. Maybe if the "out of the box" experiment works well...

Excellent advice. Thanks.

Thanks. This is an innocent question. If I was to do as you suggest with the crossover, what would not be equivalent in this modded L200 to an L300, soundwise (I know that it would look clunky)?

But can't you:

* take the LE85 out of the L200 cab,
* replace the H91 with an H92 (or 2212),
* place the LE85/H92 in an DYI 12" x 12" open baffle/stand with the L91 velcro'd on the front,
*...

Update. I got the Acoustician 1205 driver back from repair. It had a loose connection to the diaphram and was simply soldered back into place, tested and returned to me. The work was done by Music...

a) The winking emoticon meant that I was kidding.

b) I paid $78 for the pair of el cheapo slot loaded tweeters, not twice that.

c) Hindsight is always 20/20. I didn't know much about them and...

This thread is an excellent example of why hi-fi will die along with the old men.

I bought these things for $78 for the pair. I couldn't find anything on the web about them and the seller didn't...

Now tell me what you really think;)

Thanks for the advice and the great photos.

I would especially like to know is if the 2405 diaphragm kit, D16R2405, could be used in this driver.

Thanks, that would be interesting.

I bought a pair of Acoustician 1205 slot UHF drivers off eBay a while back. The seller said that these were manufactured to be clones of the JBL 2405 (or 077) slot driver. There is virtually nothing...

I looked a little harder in the forum and found my answer:


From: http://www.audioheritage.org/vbulletin/showthread.php?t=1478&highlight=034

Post #4

Can anyone tell me what the frequency range is of the 034 tweeter that is used in the L46 speaker? Alternately, what is the frequency range of the L46? I'm trying to see how high they are good for....

Well, I got the rig up and running. L200 cabs with the 136a and LE85/H91/L91 drivers and the 3110 crossovers. I have plugged up one of the two ports. I'm feeding these speakers signals 10 KHz and...

Success! Last night I was able to use a hairdrier to heat one of the HF control switch's foilcal. It came off fairly easily and cleanly using just my fingers, but someone has suggested using a putty...

I guess that explains why the L200B had only one port with the 136A. Thanks!

Thanks everyone for some great advice. Like Larry the Lobster, the LX16 crossover will be saved by using a 1500 w blowdrier on the foilcal.

I will be bi-amping this quasi-L300 with a GAS Ampzilla...

I am continuing with my project to convert an pair of L200's into a pair of quasi-L300's. I now have 136A's in for the woofs and have plugged up one of the two ports. I have gotten a pair of 3110...

Yes, I have them running off of an external electronic crossover at 7KHz. I have pseudo JBL L200B's running below 7KHz. These Heil's sound very good, but I've got some 2405's on order that I will...

You're right, I don't believe that JBL ever used the ESS Heil driver in their speakers. That's why I cautiously posted my query in the Off Topic forum. Sadly, I have now emailed ESS twice with no...

Hi, can anyone ID the ESS AMT Heil driver from these links?

ESS AMT Heil driver, front

ESS AMT Heil driver, rear

The driver and mounting in the photos measure 7" x 7" x 3.5" deep.

Thanks,...

I'm selling the LE15B's right now. See Marketplace.

Thanks very much for all of the help. I'm still learning.

Would I lessen the inherent compromise of using a 136A woofer in the L-200 (with one of two ports covered) using the LX-16 1200 Hz...

I now have an unused pair of LE15B's from L-200's. Many posts here say that the commercial equivalent is the 2216. In looking at the spec sheet for the 2216, it says that the impedance is 4 ohms, but...

A photo of the project so far is at:

http://velero-ii.com/Photos/JBL_L200B_Studio_Master-WIT-11.JPG

This is with the ESS AMT-3 tweeters on top. The 2405's are coming.