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DC Sounds 13th February 2011 11:17 AM

Testing Drivers
I need to test a few tweeters that i have just recieved yesterday. (I own all the testing equipment.)
How to i go about doing so?
Cheers, Dean

AndrewT 13th February 2011 01:16 PM

Check the DC resistance of the voice coil. Does not apply to Piezo tweeter.
Stick a capacitor in series with the tweeter.
Connect the series combination to an audio amplifier.
Listen as you slowly turn up the volume.

You need to select the capacitor value to suit the tweeter impedance and also the tweeter passband.

10uF with an 8ohm tweeter gives f-3dB~2kHz and falls off @ 20dB/decade for frequencies below roll off.

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