Gotcha. I've measured T/S parameters before using a signal generator and voltmeter years ago. I'll have to look into extending that process to develop the full curves for impedance and frequency response.
Dear friends, i think it does not have any sense to buy a kit and measure it 🙂 if i was able to measure i had make my own speaker 🙂
Anyway, the files you posted are very good and match perfectly my drivers.
The issue i am having with the U18rnxp is the bump at 500hz. I dont know how i can manage it. The resulting sound is always "tube" because of that renforcement.
Have you any suggestion?
Anyway, the files you posted are very good and match perfectly my drivers.
The issue i am having with the U18rnxp is the bump at 500hz. I dont know how i can manage it. The resulting sound is always "tube" because of that renforcement.
Have you any suggestion?
You know what would help? To explain how you damped the air resonances of the cabinet cavity ( photo?), to draw a schematic that you have right now and the parts values at your disposlal to make the mods. And that .text file you attached does not have phase information in it.
I'll think about countermeasures.
I'll think about countermeasures.
yes, sure.
The cabinet is 17Wcm x 34D x36H , rear ported.
internal volume is 20Ltrs.
Damping is pyramidal pads (5cm thickness), two layers on the bottom, one layer on the top and one layer on the rear (leaving the port free). Sides of the box are damped with 2cm white polyester (acousta-stuff).
This is actual crossover, I hope this can make you help me. many thanks
regards
The cabinet is 17Wcm x 34D x36H , rear ported.
internal volume is 20Ltrs.
Damping is pyramidal pads (5cm thickness), two layers on the bottom, one layer on the top and one layer on the rear (leaving the port free). Sides of the box are damped with 2cm white polyester (acousta-stuff).
This is actual crossover, I hope this can make you help me. many thanks
regards
cucicu, no not right now, I wouldn't change woofer LP or damping. I reckon wrong summation at XO frequency is a prime suspect for a less than ideal sound.
Lojzek
You are right. I managed tweeter arm 2nd and 3rd order but best results is the one i posted (6.8uf/0.22mh).
In general with 3order on tweeter (many values tested) from measures there is a dip from 1khz to 2khz. It seems like the drivers are opposite polarity but they are not. So i think 2nd order is the must here.
You are right. I managed tweeter arm 2nd and 3rd order but best results is the one i posted (6.8uf/0.22mh).
In general with 3order on tweeter (many values tested) from measures there is a dip from 1khz to 2khz. It seems like the drivers are opposite polarity but they are not. So i think 2nd order is the must here.
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