shorting rings?

thanks for all of the information, i really appreciate you taking the time to type all of that. i pretty much get it as far as im going to without getting into some math so really i have nothing more to ask, i just wanted to see how close to the truth i was. i know you cant get the adires anymore and mpyres are really hard to find too for some reason. i guess they must not be selling well or something because i can only find them on ebay and only from 1 guy who cant sell them. i sent him a question asking him if they had shorting ring so i'll see what he says and i might end up buying them. i really want to get 2 sets and put 1 in my truck and put the other in a HT setup with the morel MDT 30-s tweeters and a soundsplinter RL-S 12 for the bass. i think it would sound pretty BA

i just thought of another question. when you are looking at the specs for any particular speaker, are there any specs that will indicate if a speaker has high or low inductance?

soundnsecurity wrote: i just thought of another question. when you are looking at the specs for any particular speaker, are there any specs that will indicate if a speaker has high or low inductance?

The inductance value is listed as Le and is given in milihenries.  This is generally per voice coil.

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DYohn wrote: soundnsecurity wrote: i just thought of another question. when you are looking at the specs for any particular speaker, are there any specs that will indicate if a speaker has high or low inductance? The inductance value is listed as Le and is given in milihenries.   This is generally per voice coil.

Also note that inductance is generally rated at 1kHz. I also want to point out that the use of shorting rings doesn't necessarily mean inductance will be controlled within the pass band of the driver. When I worked at Adire Audio I saw a study conducted by David Hyre, who has his doctorate based around magnetics, which showed that it must be applied correctly to obtain beneficial results. We saw that many using them weren't doing it correctly and in some cases their use was a hindrance.

DYohn wrote: https://www.the12volt.com/installbay/forum_posts.asp~TID~64602~PN~1~m~k#post

For post number two of that thread, see here: http://www.diycable.com/main/pdf/WooferSpeed.pdf

DYohn wrote: soundnsecurity wrote: i just thought of another question. when you are looking at the specs for any particular speaker, are there any specs that will indicate if a speaker has high or low inductance? The inductance value is listed as Le and is given in milihenries.  This is generally per voice coil.

ok, does anyone know if 0.005 is the same Le as the adire extremis mids? im trying to compare the mpyre mids to the adire mids.

soundnsecurity wrote: DYohn wrote: soundnsecurity wrote: i just thought of another question. when you are looking at the specs for any particular speaker, are there any specs that will indicate if a speaker has high or low inductance? The inductance value is listed as Le and is given in milihenries.� This is generally per voice coil. ok, does anyone know if 0.005 is the same Le as the adire extremis mids? im trying to compare the mpyre mids to the adire mids.

They use the exact same motor and therefore it will be identical. The only difference between the two is the cone material used. I will be installing the Mpyre mids in my car on monday hopefully.

Steven Kephart wrote: soundnsecurity wrote: DYohn wrote: soundnsecurity wrote: i just thought of another question. when you are looking at the specs for any particular speaker, are there any specs that will indicate if a speaker has high or low inductance? The inductance value is listed as Le and is given in milihenries.� This is generally per voice coil. ok, does anyone know if 0.005 is the same Le as the adire extremis mids? im trying to compare the mpyre mids to the adire mids. They use the exact same motor and therefore it will be identical. The only difference between the two is the cone material used. I will be installing the Mpyre mids in my car on monday hopefully.

did you order yours factory direct from mpyre? if so what is their number because i cant find anything at all on them, not even a working website. i'd rather not order these from ebay if i dont need to so any info would be appreciated.

I don't think Mpyre is around any more. Probably the only place to get them is from Ebay. I purchased them from Bob at Creative Sound Solutions who was a dealer. You can see if he still has some. www.creativesound.ca Oh, I forgot to mention another small difference between the Mpyre and Extremis is the Mpyre is a 4 ohm driver. So parameters will be different due to that as well.

After searching and searching, it seems the only place to get them IS, in fact, eBay. I just bought three sets! (Should've bought four...) I don't ever really want to be out of those, so I'll put 'em on my shelf, till I need 'em! Thinking about it now, I have some really nice Vifa D-26 silk-dome tweeters that'd match with those just super-de-duper for a kick-*** multimedia system!It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."