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more10
09-01-2011, 08:42 AM
I have recently aquired a pair of 2344A (butt cheeks). I will try all my JBL tweeters above, but it would be nice with 2404 (baby cheeks). I use active filtering.

JBL M552 or M553 could be used. In stereo mode the highest frequency that can be set is 5 kHz, in mono mode 9 kHz. It is only possible to have CD compensation on one output though.

Do I need to CD compensate 2404? I have seen frequency response diagrams with flat response, and other diagrams with falling response (as I expect).

Can I use EQ? I am planning to get a 31 band EQ anyways.

Using passive filters between the XO and the power amp is of course also an option.

Any suggestions most welcome.

macaroonie
09-01-2011, 12:06 PM
Hey Presto

http://www.audioheritage.org/vbulletin/showthread.php?19654-M553-mods-for-3-way-with-slot-tweet&highlight=m553

this gives you a max mf / hf of 10KHz

Here is the service PDF

http://www.jblproservice.com/pdf/M-Series%20Electronics/M553.pdf