wanna see why TC sounds doesnt use aluminum cones anymore???

[Kyle_Keating 10+ year member]

It's an approach from STEP Technologies. Patrick Turnmire (from Red Rock Acoustics) is the CFO and Enrique Stiles is CEO. I think it's short for Multiple Magnetic Air Gaps. Pretty simple and intuitive: backplate/pole, magnet, steel plate, magnet, steel plate. Where Adire uses a rebate, they use another magnet. I remember they had a good idea where they used an aluminum basket between the middle plate and the magnet for the second gap where the basket would short out eddy currents and work well for thermal compression as well.

Ok so its like XBL^2 but a different approach... basically, I would lump them into the same category... dual/split gap. fundamentally they do the same thing... two gaps, one coil in between them... is that correct? MMAG might have the advantage of being more "semmetrical" (dividing up the flux properly.. i believe XBL^2 always has the problem that more flux lines migrate to the bottom gap) That really was not my focus, I was assuming perfect symmetry (ideal cases only) such that i could look at coupling efficiency only.

There are a few other ways too, I think the XBL^2 patent makes references to all of them.

 

[Kyle_Keating 10+ year member]

It's an approach from STEP Technologies. Patrick Turnmire (from Red Rock Acoustics) is the CFO and Enrique Stiles is CEO. I think it's short for Multiple Magnetic Air Gaps. Pretty simple and intuitive: backplate/pole, magnet, steel plate, magnet, steel plate. Where Adire uses a rebate, they use another magnet. I remember they had a good idea where they used an aluminum basket between the middle plate and the magnet for the second gap where the basket would short out eddy currents and work well for thermal compression as well.

do you have a patent #??

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[newusername 10+ year member]

Ok so its like XBL^2 but a different approach... basically, I would lump them into the same category... dual/split gap. fundamentally they do the same thing... two gaps, one coil in between them... is that correct? MMAG might have the advantage of being more "semmetrical" (dividing up the flux properly.. i believe XBL^2 always has the problem that more flux lines migrate to the bottom gap) That really was not my focus, I was assuming perfect symmetry (ideal cases only) such that i could look at coupling efficiency only.
There are a few other ways too, I think the XBL^2 patent makes references to all of them.

Pretty much bang on in all respects.

They have a bunch of stuff on their site: http://www.stepip.com/

 

[NDMstang65 10+ year member]

Ooooooooooooooooooohhhhhhhhhhhh that's the thing that they did that causes the reaaaaaaaally high Qts...i remember those

It's a dead ferrite slug that isn't charged that creates the 'void' that is like xbl^2...eats far too much steel out and makes it a big sealed box sub...

 

[Memphis4L 10+ year member]

ouch that would ****.

 

[dcole18 5,000+ posts]

lol... this thread deff isnt about cones anymore

 

[Detox420 10+ year member]

How does the GTI from JBL compares to the other drivers that uses XBL^2, LMS, Split Coil?..in term of sound quality. I've listen to couple GTI setup before and they all sounded great.

 

[terra 5,000+ posts]

this got deep..

 

[Kyle_Keating 10+ year member]

How does the GTI from JBL compares to the other drivers that uses XBL^2, LMS, Split Coil?..in term of sound quality. I've listen to couple GTI setup before and they all sounded great.

well the GIT really tackles other issues apart from BL linearity (inductance is the key one), the JBL website describes it best, but its a bit biased on a few debatable issues of course... one of them is the "braking system" which adds some high odd order harmonic distortion. They claim is good because it protects the woofer (it does) but destroys sound quality when you run it past xmax... of course you should never run anything past xmax in theory... should you?

debatable i guess.

 

[Kyle_Keating 10+ year member]

this got deep..

yes, next time lets do these threads on the new audiojunkies forum!!

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[dcole18 5,000+ posts]

talked to Thilo about the sub... im gonna ship it back and it will be rebuilt in house

 

[Memphis4L 10+ year member]

lol... this thread deff isnt about cones anymore

haha i kinda noticed that. but i posted anyways. still would ****. never had anything like that happen to me. thankfully

 

[terra 5,000+ posts]

Next time lets look into future designs and concepts of whats to come. I've been working on some prototypes of ideas I haven't seen before.

 

[dcole18 5,000+ posts]

sure man, keep me updated //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[bose301s 5,000+ posts]

Next time lets look into future designs and concepts of whats to come. I've been working on some prototypes of ideas I haven't seen before.

Let us ll know, I would love to see the designs and even help out in any way if I can.