Tangband W3-881 MLTL build - diyAudio
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Old 20th April 2013, 09:25 PM   #1
ryani is offline ryani  United States
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Default Tangband W3-881 MLTL build

We'll I've been reading up on all the single fullrange MLTL using the now sold out tangband 3" and really got hooked on how good these little guys can sound.

I had 8 of these in two sealed cabs. No calculations and with a helper tweeter all firing forward. So with the eyes rolling of the Mrs. I tore them apart to build a push-push bipole with 2 firing forward and 2 firing backward all in phase and the helper tweeter out of phase facing the wall.

The tuned port is hidden and down-firing.

I have to give the credit to xrk971 for the calculations because mine were way off! Thanks again X

Well here she is and what it replaced.
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Old 20th April 2013, 09:31 PM   #2
ryani is offline ryani  United States
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The inside dimensions are 8.5"d 5"w 40"t T had enough room underneath to make the port external of the box and it measures 2"x5"x3.7long.

Overall outside it is 9.5"d 6"w and 48"t

The drivers are placed 1/3 down the enclosure and it is stuffed 2/3 down with the bottom being left open over the port. I stapled an old scrap of speaker grill cloth at 26" to prevent all the stuffing from falling down.
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File Type: jpg Tangband W3-881 MLTL build 009.jpg (660.4 KB, 564 views)
File Type: jpg Tangband W3-881 MLTL build 015.jpg (728.6 KB, 1344 views)
File Type: jpg Tangband W3-881 MLTL build 018.jpg (525.3 KB, 184 views)
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Old 20th April 2013, 09:37 PM   #3
ryani is offline ryani  United States
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This thing sounds so good and I haven't even monkeyed around with yet. 5 min of listening. After this write-up I will go enjoy it.

Bad thing is now I have to gut my other tower to build a matching enclosure. I can't wait to hear it then.

The old one just sounds dead compared to this one. Kudos to X! In this case the box does really makes all the difference in the world.

Thanks to all your guys write ups on the MLTL for the little tangband that could.
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Old 20th April 2013, 10:00 PM   #4
xrk971 is offline xrk971  United States
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Ryan,
Well you still have Sunday to build the matching channel very nice work Ryan! And I am glad it sounds good, because it was designed with the Accidental Mass Loaded Transmission Line (AMLTL) technique, and being 'accidental', I am glad it turned out to be a happy accident. Accidental MLTL Technique. If you have a microphone and Holmimpulse, a freq response measurement would be great to see. If you think one sounds good, in stereo it will be very very nice. Thanks for giving my design a try.
Regards,
X

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Old 20th April 2013, 10:24 PM   #5
ryani is offline ryani  United States
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Sorry X I don't have any actual scientific means to measure the response. I usually just ask the better half. haha

About the tweeter, I have it crossed high @ 6K and out of phase. It sounds very nice @ at sitting distance. Should I bother trying it in phase with the other drivers? From what I've read on the forums out of phase is the way to go on rear firing.

I'm going to flip the recliner up and start having a through listen with a celebratory beverage in hand
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Old 20th April 2013, 11:00 PM   #6
xrk971 is offline xrk971  United States
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If you buy a cheap microphone like the Panasonic WM61a capsule, download Holmimpulse onto your PC with soundcard and you are set to do freq response measurements. But you are right, the auditory judgement of our better halves beats any mic any day. How does the bass guitar sound on this? Are you getting all the lower notes?

I don't know anything about tweeters firing backwards. Try both ways if you are unsure.

Enjoy the fruits of your labor, albeit, in mono.

Last edited by xrk971; 20th April 2013 at 11:02 PM.
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Old 21st April 2013, 05:46 AM   #7
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Very nice build.

Sent from my SCH-I605 using Tapatalk 2
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Old 21st April 2013, 10:11 PM   #8
ryani is offline ryani  United States
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Thanks for the kind words yepvegas.

Well I got the other tower put together this afternoon. Stereo bipole front speakers is something I've never heard before. I like it! The sound just fills up the room but it still has left to right imaging. Really loving them so far.

Oh and X they must get down a bit because I had a friend stop over and thought I had a helper sub on. Said nope just 8 little 3"er's! He was blown away.
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Old 21st April 2013, 10:34 PM   #9
xrk971 is offline xrk971  United States
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Helper sub! That means the MLTL is working snd doing its thing! Very cool.
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Old 22nd April 2013, 02:50 PM   #10
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Quote:
Originally Posted by xrk971 View Post
Helper sub! That means the MLTL is working snd doing its thing! Very cool.
Cool, indeed. I'm not too surprised though.
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