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how to calculate optimum voltage for driver

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JOEDL1509 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JOEDL1509 Quote  Post ReplyReply Direct Link To This Post Topic: how to calculate optimum voltage for driver
    Posted: 27 August 2015 at 2:15pm
Good day,

Not sure if I'm on the correct forum page (admin please move if necessary).

I'm busy browsing and getting info for my next build & noticed something.

A lot of users mention the max/ optimum voltage that the cabinet can handle without causing damage to the driver.

I currently built a pair of THAM12's loaded with Faital Pro 12H1010's. T&S are as follows:
Fs - 45Hz
Re - 5.5 ohms
Qes - 0.35
Qms - 9.4
Qts - 0.33
Xmax - 9.25mm
AES power - 700W

I am pushing them with a Nuke 6000, but don't give it full throttle. The DCX output gain is about -4 and the amp volume generally at 3/4's of max.

How does one calculate and measure the max voltage for the cabinet. 

Just want to know if I am over driving the cabinet or if i can give it a little more juice
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all bass View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote all bass Quote  Post ReplyReply Direct Link To This Post Posted: 27 August 2015 at 7:54pm
Tham Hornresp imput are freely available on Martinson's blog.

Add your driver and simulate how much voltage/watts you can give it before exceeding x-max.
https://www.instagram.com/my_modular_journey/
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PavelP View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PavelP Quote  Post ReplyReply Direct Link To This Post Posted: 28 August 2015 at 12:46am
It's not so easy, dude. You can try to measure a voltage before the driver reaches xmax on pink noise.
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bruce@bluff View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bruce@bluff Quote  Post ReplyReply Direct Link To This Post Posted: 28 August 2015 at 6:19am
You will also need and accurate AC rms voltmeter not cheap. Personally and from a lot of experience you should be fine providing the amp does not clip. Also the Behringer I Nuke amps are very overated and lastly set a high pass filter on the LMS if you are using one.     
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