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OK, I know this is a very old thread, but I was given an old Altec 1231c slanted stage monitor cabinet in 2017. It had a 90 degree bend Altec 32c horn with a blown Electro-Voice driver. The 12 inch...

My brother-in-law still has some L100's he bought in 1973 or so, and they are still cranking. I replaced the foam grills for him in the mid-1980's, but they have had no other problems since. Nice...

I agree with two other people answering you about center channels. Conventional wisdom says, "Make your center channel mid and HF drivers match your front left and right drivers.", so that as sounds...

Yes, I ordered the diaphragm online, and the response was that it was coming from Hong Kong. It says Eminence right on the box. It had identical design, mounting, connections, mounting screws, etc....

Hi. I just replaced a 2420 diaphragm with an Eminence replacement Aluminum unit. It sounds beautiful, with no "edge". I personally like a titanium diaphragm, but some think it is too strident,...

Okay, FE3T, you were just experimenting with the 2206 vs. 2214. I do the same type of tests. I visited your neighboring country two times. Maybe I will make it to Norway one day, I hope! Skol!

If the 2206 drivers have a higher resonant frequency (Fs) than the 2214's, then you may want to reduce the cabinet volume, or change the port diameter and depth. Cabinet volume can be reduced by...

To: Traveler

I typed you an earlier response, but it bombed. Anyway, the priority is to have the highest frequency driver, in this case the ring radiator, in the highest position, near level...

At the risk of heresy on this website, the JBL 2121 and similar 10 inch drivers are no longer available. Maybe you can find some used ones. If not, Eminence makes several good lines of speakers...

I would also need the woofer model and resonant frequency Fs, the approximate volume of the internal bracing members (usually 2"x4" wood), the length, internal diameter, and number of existing...

Hello,

If you will send me your overall cabinet volume minus the approximated component volumes, the woofer impedance, desired crossover frequency, and a crossover schematic, or series inductor...

I finished restoring the 4320. I used plywood to replace the press-wood grill frames which had deteriorated due to moisture in a basement. I replaced the 2420 diaphragm with an aluminum...

Interesting. You just taught me something. Thanks. The slot must give the tweeter good horizontal dispersion by diffraction.

Correcting my previous post, the tweeter is a 2405 slot-type Ultra-High Frequency Transducer, not a ring radiator.

Correcting my previous post, upon further research I found that the JBL I am restoring is a 4320, not an L200. The configuration is a 4502 cabinet, LE15 Woofer, and 2420 horn with diffuser. The...

I have an idea for using the 4350 on its side. Move the ring radiator to the other blanked-off location, turing it 90 degrees. The blank-off plates usually come off on other models simply by...

If you also have an L200, you may be interested in this. I saw the photo of the 4311 and that the color is RAL7038 from another post in this thread. I am restoring a 1969 L200 2-way Studio Monitor...