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Old 20th September 2005, 06:04 PM   #1
bigwill is offline bigwill  United Kingdom
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Talking New TL subs

After being a general nuisance with lots of questions on the forums for the past few months, I finally have something to contribute

Behold, my new stereo transmission line subs!

More pics coming shortly

Last edited by bigwill; 10th September 2012 at 11:41 AM.
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Old 20th September 2005, 08:30 PM   #2
hooha is offline hooha  Canada
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Nice and clean looking - just the way I like it. My hats off to you, building decent TLs have always been a challenge.

What driver is that?

Mark
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Old 20th September 2005, 08:38 PM   #3
bigwill is offline bigwill  United Kingdom
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Quote:
Originally posted by hooha


What driver is that?

Mark
MCM 55-1480 ...about $30 (18)

Despite being a cheapo, it works well

Bass is fast and deep. One song hit about 20Hz at one point. Very impressive performance for such a cheap driver

Things I need to do

1. Figure out why one sub sounds slightly different to the other (probably a placement issue, or a difference between the drivers)

2. Put stuffing in the TL. At the moment there's nothing, despite this it isn't boomy at all.

3. Finish my active XO to integrate them properly. They're running full range at the moment, with just the tweeters of the bookshelf speakers wired up in parallel! As horrific as it sounds, it doesn't sound too bad
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Old 20th September 2005, 08:52 PM   #4
hooha is offline hooha  Canada
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Quote:
Originally posted by bigwill

1. Figure out why one sub sounds slightly different to the other (probably a placement issue, or a difference between the drivers)
Easy way to check at this early stage would be to swap them around - this will determine if its a placement issue.



Quote:

2. Put stuffing in the TL. At the moment there's nothing, despite this it isn't boomy at all.
No surprise there...


Quote:

3. Finish my active XO to integrate them properly. They're running full range at the moment, with just the tweeters of the bookshelf speakers wired up in parallel! As horrific as it sounds, it doesn't sound too bad
FULL RANGE??!! OMG!!



Mark
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Old 20th September 2005, 08:58 PM   #5
bigwill is offline bigwill  United Kingdom
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The clean look of the woodworking is due to the fact that I didn't do much of it, my good friend helped
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Old 22nd September 2005, 07:03 PM   #6
bigwill is offline bigwill  United Kingdom
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UPDATE

I'm now running them properly crossed over and they sound fantastic

They're very musical and go nice and deep
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Old 22nd September 2005, 07:18 PM   #7
zobsky is offline zobsky  India
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plans ?
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Old 22nd September 2005, 07:24 PM   #8
bigwill is offline bigwill  United Kingdom
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Quote:
Originally posted by zobsky
plans ?

They're very simple to make

So simple that I didn't need any plans, but I can quickly draw some on the computer if you want

It may well be worth putting the plans on a website, it's such a simple design and so far seems to be a very effective
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Old 22nd September 2005, 08:17 PM   #9
zobsky is offline zobsky  India
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Quote:
Originally posted by bigwill
Here are the plans in all their MS Paint glory

Thanks, .. might hack up something with a some spare 8" MCM 55-2421 subwoofers I have
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