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mustang_flht

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Posts posted by mustang_flht

    French review of the Klipschorn

    in General Klipsch Info

    Posted

    Here is a test bench of Klipschorn published in the Nouvelle Revue du Son in 1982, with beautiful measurement curves. But these are photos of the article, so I don't know if a software can translate this text into English?

     

    I don't think this is the article @garyrc is talking about, because it doesn't say: the Khorns as "the new version,"

     

    klipschorn_82_1-50--1d30e6f.thumb.jpg.fff0024c1185f2658145b2bf6db85ff5.jpg

     

    klipschorn_82_2-50--1d30e7f.thumb.jpg.1e210492900d435289e36ec712919c7e.jpg

     

    klipschorn_82_3-50--1d30e8a.thumb.jpg.2fdce0bd4a07e1ddd9411c25a26d0804.jpg

     

    klipschorn_82_4-50--1d30e95.thumb.jpg.e1b0843a4ad65ef95527bd58d010c3e3.jpg

     

     

     

     

     

    • Like 1

    Car Thread

    in Lounge

    Posted

    On 7/30/2022 at 6:33 PM, OO1 said:

    Not too  fast  here ,   Porsche Audi purists dont care about the  VW marketing  , or the rebadged  VW A3 -VR6 ,  the  Audi  RS-R  , RS , Lambo V10   , and the  911  have no VW equivalent  , let's get 1 thing clear ,  a 911 Turbo or R8  aint a VW 

     

    And yet 911 is Ladybird's Beetle half-sister, they have the same father and the same architecture!  ☺️

     

    Crossover: Heresy III / CW III : 25 Watts Resistor really needed??

    in Technical/Restorations

    Posted

    Hi @radiogramme

     

    @JohnA's comment is a good thing

     

    For me the 10W resistors are already well sized, but if you want to increase the reliability of the resistors, I advise you to mount them with a space of 1/2 inch between the printed circuit and the body of the resistor: the cooling by convection will be much better and the reliability greatly increased.

     

    NO

    images?q=tbn:ANd9GcT4xvEeJyN4Lj99B_tK93y

     

     

     

    YES

    sd-3023a-2.jpg

     

     

     

     

     

    Otherwise you can't find 25w Mundorf resistors on the net?

     

    https://www.mundorf.com/audio/en/shop/Resistors/?reload_filter=true&p (max)_25watt=true&p (max)_1x15watt=false&p (max)_2x7%2C5watt=false&p (max)_5watt=false&p (max)_10watt=false&p (max)_20watt=false&p (max)_30%2F3watt=false

    Klipsch crossovers

    in Technical/Restorations

    Posted

    10 minutes ago, radiogram said:

    @mustang_flhtbut won't that change the freq response? I believed That between CIII and HIII mid and High section the only difference will be around 3dB more attenuation compared with the CIII as HIII is 3db lower than CIII.  But if you have CIII Tweeter circuit with just a 3 Ohm Series Resistor then the freq response is not going the the same as CIII unless you do a proper L-Pad. I am confused.

     

    The difference must be really minimal, but nothing prevents you from making an Lpad for tweeter of 8ohms and - 3dB

     

    You can test both Lpad and R 3Ohms, and listening the difference!

     

    Lpad for 8 ohms = R 2.3 Ohms serie and 19.4 //   (use realy 2.2 and 20)

     

     

    http://www.mh-audio.nl/Calculators/att.html

    Klipsch crossovers

    in Technical/Restorations

    Posted

    53 minutes ago, radiogram said:

    @mustang_flht

    @001

     The mid and tweeter sections between CIII and H111 should be identical except for Resistors' values. We know that the 50 ohm Parallel Resistor in mid section in CIII is 20 Ohm in HIII. Makes sense it is lower since HII needs more series attention so parallel value is Lower than the CIII.

     

    The Tweeter section, based on a past CANT's post, there is a series 3 ohm resistor which takes up the empty space marked R4 in the CIII network. But this does not make sense since we need L-Pad not just a series Resistor.

     

    Surprised HII Xover has not been really addressed in this forum in spite of it being out of production for a few years now.

     

    Do you think we could get Klipsch themselves to reveal the schematic in this forum?

     

    Cheers

     

    For Mid: I d'on't Know

     

    For Tweeter section : Yes like @CANT: a resistance of 3ohms no Lpad

     

    Here is a picture of a network of HIII with R 3Ohms

     

    NB: I had shown someone on the forum how to put an 8.2ohms resistor in parallel to make only 2.2Ohms, because the guy found their tweeter too weak!

    1941258350_NetworkH3.jpg.b867154ab3ad09318d503f0942f6bae1.jpg

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