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Thread: CSS EL166 Mid and CSS ERT26 Tweeter

  1. #1
    Tester Extraordinaire ErinH's Avatar
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    CSS EL166 Mid and CSS ERT26 Tweeter

    Ran these two drivers through the woofer tester tonight.

    I've taken both driver types and measured both samples I was sent of each so that I can get a feel for how closely matched they are from the factory and to also check my measurements against the mfg results.


    First, the 2 EL166 Midwoofers:

    T/S Parameters:
    [CODE]
    Driver: #1 #2 Avg Mfg
    Qts: 0.4597 0.4688 0.464 0.38
    Fs (Hz): 38.36 39.03 38.69 33.7
    Le (mH): 1.488 1.499 1.499 0.60
    [/CODE]

    Impedance:






    Now, the ERT26 Tweeter:
    T/S Parameters:
    [CODE]
    Driver: #1 #2 Avg Mfg
    Qts: 1.214 1.163 0.464 N/A
    Fs (Hz): 1480 1453 1467 1500
    Le (mH): 0.926 0.948 1.499 N/A
    [/CODE]

    Impedance:


    **Note: The side bump in impedance is real. Both drivers were measured multiple times and the curve was identical each time. Drivers were sitting on the bench, probes connected. What you see is exactly what I get. Nothing special in this test to make that happen. All others tweeters are tested the same way (no force holding on to them which can and does often shape response). FWIW, for the heck of it, I re-measured by tilting the tweeters on their side just to see if there was something weird going on due to their position; same results.





    That's all...
    Last edited by ErinH; 10-09-2010 at 11:54 PM.
    Your ears: The best tools you have... and they're free, too!

  2. #2
    Member hottcakes's Avatar
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    any chance you being able to fully test these drivers now that you have all that gear setup? i mean, these were supposed to be first up a few months ago weren't they?
    Last edited by hottcakes; 04-27-2011 at 01:04 AM.
    i should really stay off of forums after a few drinks.

  3. #3
    Tester Extraordinaire ErinH's Avatar
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    I shipped them off to Gary along with the Praxis setup. I can still test them but Gary would have to be willing to send them back to me.
    Your ears: The best tools you have... and they're free, too!

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