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best woofer for tham12, i tried with rcf midbass..
best woofer for tham12, i tried with rcf midbass..
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Old 20th July 2018, 08:56 PM   #11
Djim is offline Djim  Netherlands
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If you add the load resistance (based on Zmin) your Xmax will be reached with 317 Watts @ 49,62Hz (Zmin = 7,0734 Ohm) That means an amp rating of 280 watts @ 8 Ohm...
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Old 20th July 2018, 09:26 PM   #12
angelodj is offline angelodj
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while the original cone the 12ps100 can go beyond as power?

I'm worried because I'm building 8 cabinet tham 15 (mk2), to be used with 15nbx100 that I have already ordered, I would not want to use the power due to too much compression that makes me go to limit the xmax.
But there is a user of this forum that says to use the tham 15 with the 15ps100 with 1250watt .. hopefully good!
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Old 20th July 2018, 09:33 PM   #13
Xoc1 is offline Xoc1  United Kingdom
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Stop using the maximum SPL tool. In theory the 500W amplifier is powerful enough to drive the speaker to X-max, and the speaker will not stop when it reaches x-max.
In practice the speaker could probably use a bigger amplifier.
More importantly the high pass filter needs to be set to stop over excursion at lower frequencies. Run the sim for acoustical power and use the filter wizard to look at the displacement. My guess is as I said before 4th order hi -pass at 40Hz
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Old 20th July 2018, 10:03 PM   #14
angelodj is offline angelodj
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Thanks for the info!
in fact on the 12th, I put a 45hz filter! I thought about 15 "to filter at 35 / 40hz

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