Le (T/S) [message #48900] |
Fri, 17 February 2006 19:25 |
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Messages: 234 Registered: May 2009
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Master |
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Hi Wayne, I want to askyou if the parameter for Le (HF compression driver) that we use to model in SPICE is the one Le @ 1KHz. I have the possibility to ask Prof. Homero in the Brasil Selenium factory the curves for the this driver I have installed in one horn I have chosen and I will be also asking for the impedances and frequency response curves not published yet because the horns can always vary. I take the opportunity to ask if you or PiSpeakers have been in any presentation in Europe before or in Portugal. I would love to see a list of your presences or the PiSpeakers stand in conventions/presentations through out the world and the usa if possible maybe, on your webpage with pictures… you know. Best Regards
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Re: Le (T/S) [message #48905 is a reply to message #48900] |
Sat, 18 February 2006 09:08 |
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Wayne Parham
Messages: 18787 Registered: January 2001
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Illuminati (33rd Degree) |
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There are π Speaker owners all over the world, but most of them built their speakers from kits. We do not have a dealer network and the only convention we regularly attend is the Great Plains Audiofest. So the way most people are introduced to π Speakers is by word of mouth, hearing a model owned by someone nearby, coming to GPAF or visiting this website.For your Spice model, you can make as detailed a circuit as necessary. For many applications, a simple model with just series inductance and resistance is appropriate. For example, if you are modeling a tweeter and the crossover point is well above mechanical resonance, a simple model will probably suffice. However, if the electrical reactances are near physical reactances in terms of frequency, it might be best to include a virtual circuit model including mechanical resonance. And if inductance changes in the passband, that might be good to model too. You might even model some of the nonlinear reactances by definining your own functions, if you wanted to simulate how the circuit behaved at various power levels.
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Re: Le (T/S) [message #48909 is a reply to message #48908] |
Sat, 18 February 2006 11:23 |
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Messages: 234 Registered: May 2009
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Master |
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Thanks Wayne, Just the voice coil L. Is it the same published as Le (like in the one Le for the Eminence drivers. Is it L (or Le, inductance) measured at 1KHz? Other brands as beyma and Selenium, just write the frequency in front of Le as; Le@1KHz, Le@Fs, Le@20KHz.
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