What effect will High Le have in HD15?? |
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DiscernAudio
Young Croc Joined: 08 June 2011 Location: Alabama Status: Offline Points: 541 |
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Posted: 21 March 2013 at 10:21pm |
I found a driver that sims really well in HD15
Dayton PA380-8 Pe 500 db 98.5 Fs 28.3 xmax 5 qts .24 qms 9.99 qes .23 vas 250.5 bl 23.44 sd 845 re 5.8 but... Le = 3.38 ???????? How does the high Inductance play a role in the HD15 system? |
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DiscernAudio
Young Croc Joined: 08 June 2011 Location: Alabama Status: Offline Points: 541 |
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odc04r
Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5483 |
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Higher Le will roll off your HF response due to attenuation of the amplified signal by the driver voicecoil. Your Le figure is 3.38mH, it is related to the geometry and design of a driver voicecoil (diameter, number of windings, former material, etc)
Some Volt HiFi drivers I have been playing with recently I measured at 0.8mH and I cross them over to a compression driver at 2.5KHz. The Eminence Delta 15A is intended for bass/mid application and has a similar Le figure. I wouldn't put one into a bass bin and expect good results. The Delta 15LF version has an Le of ~1.5mH and is better suited for bass work. In summary larger Le means a driver that will not play as high, whether this is a problem depends on your application and design. Why don't you try simulating different values of it in HR with the same design and check the simulated difference. |
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DiscernAudio
Young Croc Joined: 08 June 2011 Location: Alabama Status: Offline Points: 541 |
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Thanks, great suggestion. |
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