TC Sounds 15 inch prototype sub, need some info - AVS Forum
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post #1 of 15 Old 02-05-2012, 01:20 PM - Thread Starter
 
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So I have this...











The seller said it's a prototype from TC Sounds a few years ago but he never used it. It has a single 4 ohm coil (reads 4.9 ohm on my DMM?), honeycomb fiber cone, two spiders and has a quad-stacked magnet which I think it's called 3HPLM. I have no T/S but playing it free-air with my home theater receiver sounds like something that can go loooooowwww. I'd like to make a TL or a ported box but should I start with something like 3cf sealed just to check it out???
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post #2 of 15 Old 02-05-2012, 01:48 PM
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have you considered contacting tcsounds and asking them what you have there?

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post #3 of 15 Old 02-05-2012, 03:36 PM - Thread Starter
 
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I can't find their email address, they do have a forum but I don't want to create another online account just to ask one question, I forgot that I have this account for the past 2 years!


So yeah, no idea still...
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post #4 of 15 Old 02-05-2012, 03:48 PM
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The driver has been mounted, it's obvious by the top shot of the surround / basket, and is really really full of dust, on the spider etc.

3HPLM is nomenclature for 3HP motor, LM = Linear motor variant. That would mean it's a 3 inch coil and the motor is made for a linear wound coil. ( predecessor to the LMS )

If the gap is clean, and the coil is centered, you should be ok. It looks like there are a few marks on the cone as well.

TC3LM


More or less a variation of our TC3HP ceramic motor with an extra magnet for a tad more BL, but more importantly, mechanical clearance and tolerance for an even larger shorting ring. This motor was designed with our linear coils in mind which tend to have huge strokes that require extra clearance. The magnet structure weights nearly 300 ounces and sports a 0.5" think gap plate. The gap plate also comes with a special threaded adaptor to allow fast and easy removal of the top assembly in the event of damage. The motor can be detached form the frame in a matter of only seconds.

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post #5 of 15 Old 02-05-2012, 06:53 PM
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It looks like their OEM 12 with a different motor. The OEM had a TC9 motor if I remember right.

Google TC Sounds OEM 12 and you'll find lots of info. They sold cheap and fast, a lot of car audio guys bought them up. They also came in a 10" size too.
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post #6 of 15 Old 02-05-2012, 09:15 PM
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Looks like it could be from Jack Hidley's site:

http://home.comcast.net/~jhidley/

Go down the page almost half way.

He's a busy guy though and likely won't have time to give you any info on it since you didn't buy it directly from him.
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post #7 of 15 Old 02-06-2012, 04:42 PM - Thread Starter
 
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Quote:
Originally Posted by michael hurd View Post

The driver has been mounted, it's obvious by the top shot of the surround / basket, and is really really full of dust, on the spider etc.


The screw holes actually don't have any marks on it so it hasn't been officially mounts yet, I was working on the diameter of the hole that I need to cut to mounts this so I got dust all over it. Seems weird that this is a prototype but no one really used it, maybe they built a few and got the results before using all the subs.

I'm kind of debating on whether to use this in my car or in my house...
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post #8 of 15 Old 02-06-2012, 04:56 PM
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Quote:
Originally Posted by Erich H View Post

Looks like it could be from Jack Hidley's site:

http://home.comcast.net/~jhidley/

Go down the page almost half way.

He's a busy guy though and likely won't have time to give you any info on it since you didn't buy it directly from him.

Seems to be a different motor, basket, cone and surround entirely.
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post #9 of 15 Old 02-06-2012, 06:57 PM
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are those the ones that were on ebay?
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post #10 of 15 Old 02-06-2012, 07:57 PM
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Quote:
Originally Posted by leninGHOLA View Post

Seems to be a different motor, basket, cone and surround entirely.

The picture shows just one of his prototypes, I believe he had quite a few different models.
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post #11 of 15 Old 02-06-2012, 08:35 PM
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Quote:
Originally Posted by Erich H View Post

The picture shows just one of his prototypes, I believe he had quite a few different models.

Ah, gotcha.
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post #12 of 15 Old 02-08-2012, 09:37 AM
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I was going to suggest CACO but I see you are already a member and asked about the same sub there.

Does anyone near you have Woofer Tester? Are you close to AE Speakers?

Or you can do like I did with some TC-7 15's that I picked up from Stephen Ponte, just put them in a sealed box and connect an amp.
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post #13 of 15 Old 02-08-2012, 11:02 AM
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The only way to really know what you have is to measure it.

Manufacturer specs often aren't accurate, and if it is truly a prototype - it may be a one-off, in which case who knows what the specs really are????

Measuring drivers is not that hard, you can do it with REW, a $25 USB sound card, and a $10 jig.
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post #14 of 15 Old 02-08-2012, 10:20 PM
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This is the LMT, similar to the RL-s. It has a high Q so they really like a sealed box.

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post #15 of 15 Old 03-15-2012, 01:50 PM
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I also just acquired one of these drivers. Mine is numbered 988 and has an aluminum cone. 15" dual 4 ohm coils. Unsure like you what to build however I imagine it will be satisfying once complete!
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