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Thread: JBL 4429 ANd MC 275 MKII

  1. #46
    Administrator Robh3606's Avatar
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    Sounds like you have 2344's which were 2 pieces. The 2344A was one piece. Those are 2342 little brother used in the 2425

    Rob
    "I could be arguing in my spare time"

  2. #47
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    Quote Originally Posted by Robh3606 View Post
    Sounds like you have 2344's which were 2 pieces. The 2344A was one piece. Those are 2342 little brother used in the 2425

    Rob
    Ah thanks Rob. Yes I have that 2 piece unit. They worth anything you think?

  3. #48
    Senior Member 1audiohack's Avatar
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    Quote Originally Posted by jblguy View Post
    Ah thanks Rob. Yes I have that 2 piece unit. They worth anything you think?
    They have value. If you want to sell them let me know.

    Barry.
    If we knew what the hell we were doing, we wouldn't call it research would we.

  4. #49
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    4429 verses S4700 Crossover

    David. The 4429 and the S4700 look to have the same mid and HF drivers. Horns look to be very similar. If you examine the schematics of each, it becomes obvious that the S4700 crossover is complex by comparison. The 4429, to me, is "dry" in the upper part of the midrange. My guess is, a lot more work and parts were put into the S4700 midrange crossover design. Hopefully the schematics of both get attached with this post!
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  5. #50
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    Looking at the 4429 and S-4700 schematics. The biggest change to the midrange crossover is in R4. They used a 3.0 Ohm resistor verses the 2.2 Ohm in the 4429. That change should raise the lower end of the mid horns response a little and correct the dryness in the above 3kHz response. Just turn the mid L-Pad down. I am making the assumption that the schematics are correct.

    Regards,

    John

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