Sold FS: Mint TC Sounds LMS-4000

[rollerdj 10+ year member]

1. Product:

TC Sounds 10" LMS-4000

2. Specs:

Specifications,

• 3" diameter aluminum wire linear voice coil using LMS Technology (Pat. Pend.)

• Quadruple stacked 3/4" tall, 7.5" wide ferrite magnets

• 300oz motor structure

• xmax of 30mm (one way completely linear Bl )

• Single (10"/8.5") poly-cotton spider with intergraded woven leads (15/12,10)

• Extra clearance under the suspension for dynamic high excursions

• Detachable cast aluminum basket with high gloss power coating

• Single 3Ω aluminum voice coil with four layers

• 800 watts sustained (2500 dynamic)

• High quality thermal flexible epoxies to ensure longevity

• Rigid lightweight brushed aluminum cone

• Vented flared pole piece

• 3" Long copper shorting ring for low inductance

• Rubber half roll surround allows for linear travel

• Dressed in a rubber magnet boot and gasket

• Hand built in our San Diego, CA factory

3. Description/Condition:

Mint. bought off of SPY not to long ago. was going to try to find a brother to use in HT, but none were to be found. so, this one is for sale.

since i love you guys SO much, i'm giving CACO members first dibs.

4. Price:

$300 plus shipping.

you can get an idea of what shipping is. this sub boxed up will weigh 40~45lbs, and be coming from 47404

5. Pictures:

Pic's next to big brother.

Click to read more...

 

[grimreper912003 5,000+ posts]

LMS coil needs some serious force

Sure sure. Your just making up for your tiny magnet //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[terra 5,000+ posts]

Sure sure. Your just making up for your tiny magnet //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Haha, I'll just ignore the technical aspect and just respond on your level.

Shut up!

//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[rollerdj 10+ year member]

LMS coil needs some serious force

indeed. give me one of your omega's for it. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

thanks for noticing that. i added that it's a 10. it was in the 10" on CACO, so i didn't have to worrie bout it.

 

[ciaonzo 5,000+ posts]

LMS coil needs some serious force

Without the coil, there would be no force.

 

[grimreper912003 5,000+ posts]

Haha, I'll just ignore the technical aspect and just respond on your level.

Shut up!

//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

Make Me //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif :

If its so big you can feel free to send one my way, Ill take a nice look at it //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[terra 5,000+ posts]

Without the coil, there would be no force.

Your point being?

 

[rollerdj 10+ year member]

Your point being?

he added to his poast count???

 

[ciaonzo 5,000+ posts]

Point being that the magnet is only a magnet. The magnet does not move the coil until current is applied to the coil, making it an electromagnet, which is repelled from or attracted to the permanent magnet which creates the serious force you referred to earlier.

 

[ciaonzo 5,000+ posts]

he added to his poast count???

No, sorry I'm not trying to dump or raise my post count. I'm truly interested in this 10". I did ask about a possible trade in my last post to you. Would you consider anything?

 

[terra 5,000+ posts]

Point being that the magnet is only a magnet. The magnet does not move the coil until current is applied to the coil, making it an electromagnet, which is repelled from or attracted to the permanent magnet which creates the serious force you referred to earlier.

Thank you for the lesson.

My point being the winding pattern on the LMS coil requires a very large motor gap to safely travel through. The gigantic motor structure makes up for the BL loss of a huge gap.

 

[ciaonzo 5,000+ posts]

Thank you for the lesson.My point being the winding pattern on the LMS coil requires a very large motor gap to safely travel through. The gigantic motor structure makes up for the BL loss of a huge gap.

Gap is the same width between the LMS motor and a TC-9 motor. The added magnetic mass is to compensate for the lost BL due to less winding in the middle of the coil which accounts for the low sensitivity. At the extremes of the LMS coil, the width is the same as a TC 2000/3000 coil. We can keep going if you like. I own multiples of these drivers and have many of them apart in front of me.

 

[terra 5,000+ posts]

Gap is the same width between the LMS motor and a TC-9 motor. The added magnetic mass is to compensate for the lost BL due to less winding in the middle of the coil which accounts for the low sensitivity. At the extremes of the LMS coil, the width is the same as a TC 2000/3000 coil. We can keep going if you like. I own multiples of these drivers and have many of them apart in front of me.

Do I care? The fact remains, the gigantic motor structure is there to compensate for the lost BL. I've never ever seen an LMS variant before so I just assumed it was the gap. Big deal, its the coil. My point still remains. Care to split more hairs or should we just move on?

 

[ciaonzo 5,000+ posts]

Do I care? The fact remains, the gigantic motor structure is there to compensate for the lost BL. I've never ever seen an LMS variant before so I just assumed it was the gap. Big deal, its the coil. My point still remains. Care to split more hairs or should we just move on?

Assumption spreads misinformation. With a topic as "mystical" as LMS technology it would help to know what you're talking about before dropping knowledge next time. There are far too many people who don't really understand it to go around just stating vague factoids to further confuse them.

So my original question remains, are you accepting any trades or do you just want cash for this, dj?

 

[terra 5,000+ posts]

Assumption spreads misinformation. With a topic as "mystical" as LMS technology it would help to know what your talking about before dropping knowledge next time. There are far too many people who don't really understand it to go around just stating vague factoids to further confuse them.
So my original question remains, are you accepting any trades or do you just want cash for this, dj?

Give me a break dude. PM me your address, I'll send you a cold beer to relax a bit. My point is correct, I was wrong on the cause. //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

 

[grimreper912003 5,000+ posts]

Give me a break dude. PM me your address, I'll send you a cold beer to relax a bit. My point is correct, I was wrong on the cause. //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

Speaking off address, Where in madison are you? What side of town?

Sorry for dumping DJ but atleast we are keeping the thread up top //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif