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Thread: some TAD help needed if possible.

  1. #46

  2. #47
    Member Radley's Avatar
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    Reading through this interesting thread it looks like the factory crossover is the same for single woofer/ double woofers? I am not an acoustician in any way, but a few other companies have done 3 way loudspeakers with double woofers off of a single two way x-over (Meyer & Community). It's (somehow) the loading in the cabinet that makes these designs into what they call a quasi-3 way. So it's the cabinet not the crossover that makes it a three way.

    Note that the graphic in #21 shows both drivers to be the same in the dual configuration.

    L-Pads in my experience have a habit of catching on fire.

  3. #48
    Senior Member Ian Mackenzie's Avatar
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    Yeah but the woofer has a very steep crossover 36 db with high Q do is moot if it's single or dual woofer below 650 hertz.

    The horn in the other hand is relatively gentle crossover of 12 db per octave do is still heard as a point source on the mid and highs

  4. #49
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    I'm way late to the party. Just wanted to note that the "basic input/output connections diagram" that came with my TN-4 does not list a single LF driver as an option. The chart gives info on the "HF" section and the "LF (dual parallel)" section. Nothing about a single LF driver option.

    Whether that means there's more than one iteration of the TN-4, I don't know.

  5. #50
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    Does anyone know which speaker modell has used the TN-4 crossover from factory?
    As far as I know, all TAD-monitors crossover at 650hz, but the TN-4 has itīs crossover at 800hz...

  6. #51
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    Very simple question

    This was used in PA TAD loudspeakers TCM-1822 and TCM-1622
    https://qa.pioneerelectronics.com/PU...akers/TCM-1821
    https://qa.pioneerelectronics.com/PU.../TCM-1621|1622

    Unlike one version of its manual, TN-4 is only for the use of two LF units in parallel. The HF section is for use with TH-4371 Horn, and has no EQ cell.
    Do not use TN-4 for loudspeakers like Exclusive 2401 or 2402 or with ARAI290 horn it isn't made for this.

  7. #52
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    Great info, thanks!

    I was interested in the lowpass section for the woofers...
    Do you know the value of the inductors?

  8. #53
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    I tried to do some measurements and as the TN-4 wasn't mine I was not able to remove components from the circuit. It is on a piece of paper that I've to find, but I remember it was more or less a 650/800 ratio from TN-1 LF.
    This network has a role with its group delay in time alignment with the TD-4002z on TH-4371. The chosen frequency corresponds to what was needed.
    Is it for a dual woofer system ?

  9. #54
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    I understand...
    Thanks a lot for your help!

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