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Old 2nd May 2006, 04:34 PM   #1
palesha is offline palesha  India
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Default Improving P3A damping factor

"Our amplifiers are designed to have high damping factor. That's why you can count on our amps
to deliver clean, tight kick drum and bass."

I want to make P3A for bass application. how to improve it's damping factor? I want to do this because of above statement by highly reputed manufacturer of proaudio amplifier. There is no specification available on ESP site.
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Old 2nd May 2006, 04:52 PM   #2
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Marketing nonsense. Read Randy Slone's, Ben Duncan's, or Doug Self's books for details.
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Old 2nd May 2006, 05:03 PM   #3
sreten is offline sreten  United Kingdom
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Hi,

I'll second PM on this, increasing the notional damping factor
specification will have no effect on real world performance.

As the P3A has no output inductor, its damping factor will be very high,
effectively an insignificant resistance in terms of source impedance.

Reducing what is already insignificant is pointless.

Just use some decent wire to connect up the speaker.

/sreten.
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Old 3rd May 2006, 06:51 AM   #4
PMA is offline PMA  Europe
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Default Re: Improving P3A damping factor

Quote:
Originally posted by palesha
"Our amplifiers are designed to have high damping factor. That's why you can count on our amps
to deliver clean, tight kick drum and bass."

This statement is very popular and very confusing. Very good example of "marketing science".

It is not only the DF that makes a difference. And, there is always speaker cable resistance, degrading DF numbers perfectly.

Last but not least. For some drivers with very low Qts in a real box, the series resistor can improve bass reponse, optimizing Qts through Qe. Now you have paradox - lower DF brings better bass response.
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Old 3rd May 2006, 10:38 AM   #5
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Hi Palesha,

Do you really feel that you need high damping factor.

regards,
K a n w a r
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