Build your own 2x12" TH (The Kraken 212 TH) - Page 3

tb46 · 19th October 2010, 07:12 PM

Hi,

This driver is currently available on ebay below $90.--, free shipping:

JBL GTO 1214D CAR AUDIO/STEREO 12" SUB SUBWOOFER 1214 D - eBay (item 380274589025 end time Oct-30-10 20:48:32 PDT)

Regards,

maxjr · 30th December 2010, 08:56 PM

This looks like a fun build with good output. I'm curious to know if anyone has built one and taken real world measurements?

60ndown · 04:00 PM

why are the 2 drivers mounted like this? why not both on one side?

tb46 · 27th June 2011, 04:01 PM

Hi,

1. Reduced distortion.
2. Reduced volume in the S1 to S2 region.

Regards,

Djim · 27th June 2011, 04:12 PM

Quote:

Originally Posted by 60ndown

why are the 2 drivers mounted like this? why not both on one side?

Remember the link I gave you, this is again a push-pull set up.

60ndown · 27th June 2011, 04:18 PM

so drivers are wired 'in phase' ?

but function out of phase because of mounting 180* off axis?

Djim · 27th June 2011, 04:19 PM

Quote:

Originally Posted by 60ndown

so drivers are wired 'in phase' ? but function out of phase because of mounting 180* off axis?

Both cones move at the same time in the same direction. So one of the drivers needs to be wired out of fase.

60ndown · 27th June 2011, 04:54 PM

thank you.

Quote:

Originally Posted by Djim

Both cones move at the same time in the same direction. So one of the drivers needs to be wired out of fase.

60ndown · 03:27 AM

you cant keep a real music lover down

Tang Band W6-1139SI 6-1/2" Subwoofer

i picked the subs up REALLY cheap,

a little finish sanding/work and this will be the subwoofer for my new boom box build

http://www.parts-express.com/pe/show...number=320-302

yes it sounds great,

not ive tested nothing.

the only math i did was *guess* that the cone area of a 6.5 is slightly less then half that of a 12.

so i divided all the numbers on the plans by 100 and multiplied that number by 42 (42%??)

my thinking is if the proportion of cone area to box physics is the same, i should get similar performance

it definitely gets very low and is smooth in its delivery

thank you Petter Persson for the design

lowpoke · 25th July 2011, 05:36 AM

Oh 60ndown, it's so cute

19th October 2010, 07:12 PM	#21
tb46 diyAudio Member Join Date: Jan 2006 Location: n/a	JBL GTO1214D Hi, This driver is currently available on ebay below $90.--, free shipping: JBL GTO 1214D CAR AUDIO/STEREO 12" SUB SUBWOOFER 1214 D - eBay (item 380274589025 end time Oct-30-10 20:48:32 PDT) Regards, __________________ Oliver

27th June 2011, 03:57 PM	#23
60ndown diyAudio Member Join Date: Apr 2011	why are the 2 drivers mounted like this? why not both on one side? Last edited by 60ndown; 27th June 2011 at 04:00 PM.

27th June 2011, 04:01 PM	#24
tb46 diyAudio Member Join Date: Jan 2006 Location: n/a	Hi, 1. Reduced distortion. 2. Reduced volume in the S1 to S2 region. Regards, __________________ Oliver

25th July 2011, 03:18 AM	#29
60ndown diyAudio Member Join Date: Apr 2011	you cant keep a real music lover down Tang Band W6-1139SI 6-1/2" Subwoofer i picked the subs up REALLY cheap, a little finish sanding/work and this will be the subwoofer for my new boom box build http://www.parts-express.com/pe/show...number=320-302 yes it sounds great, not ive tested nothing. the only math i did was guess that the cone area of a 6.5 is slightly less then half that of a 12. so i divided all the numbers on the plans by 100 and multiplied that number by 42 (42%??) my thinking is if the proportion of cone area to box physics is the same, i should get similar performance it definitely gets very low and is smooth in its delivery thank you Petter Persson for the design Last edited by 60ndown; 25th July 2011 at 03:27 AM.

25th July 2011, 05:36 AM	#30
lowpoke diyAudio Member Join Date: Mar 2009 Location: Australia	Oh 60ndown, it's so cute __________________ Show us what ya got at Homebuilt Hi-fi


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30th December 2010, 08:56 PM	#22
maxjr diyAudio Member Join Date: Dec 2010	This looks like a fun build with good output. I'm curious to know if anyone has built one and taken real world measurements?

27th June 2011, 04:18 PM	#26
60ndown diyAudio Member Join Date: Apr 2011	so drivers are wired 'in phase' ? but function out of phase because of mounting 180* off axis?

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