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Better Spl With A T-line Or Vented Box?


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ohh and ed you took all the wind out of my sails with doing 39.9s off 400 watts LOL

lol, dont worry I know people doing much better than that. Most have walls or CRXs though.

But I also have more cone area than you.

Ed Lester

ShowtimeSPL Host

Showtime Electronics Video Marketing

My old Build Log
http://www.stevemead...08/#entry511451

http://www.youtube.com/showtimespl



TeamDeadlyHertz-HHREd.png


5 time dB Drag Finalist
Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music

New Ride, 2008 HHR SS. Build under way.
Loudest score ever = 171dB
2009 dB Drag Racing, North American Points Champion

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soo ken what was the loudest youve gotten off just a straight tline i am just lookin for some more info

never got metered with a regular tline unfortunately, I know they sound louder than they really are, its just the air movement, but I guess its because the phase is off 360deg or whatever it is, cone hits, air goes thru this long line, and then realigns with the cone

I know that Pete K guy or whatever did 2- 15s walled in some isuzu something like a 155db or something crazy

But I do believe Folded horns and bandpass tlines can actually meter better than a true tline, that is because the cone is straight firing into a tunnel, that amplifies the sound, gives it a bandwidth, and allows for better power handling

I'am drawing one up now to give an idea

sundown.jpg
I have a ritual called "terminator". I crouch in the shower in the "naked terminator" pose. With eyes closed I crouch for a minute and visualize either Arnie or the guy from the 2nd movie. I then start to hum the T2 theme. Slowly I rise to a standing position and open my eyes. It helps me get through my day. The only problem is if the shower curtain sticks to my terminator leg. It sorta ruins the fantasy.
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lol cone area ftw i can say that much lol

haha, yup, but it has to be proper cone area to enclosure to cabin volume ratio.

If I added more cone area, my numbers would go down.

Ed Lester

ShowtimeSPL Host

Showtime Electronics Video Marketing

My old Build Log
http://www.stevemead...08/#entry511451

http://www.youtube.com/showtimespl



TeamDeadlyHertz-HHREd.png


5 time dB Drag Finalist
Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music

New Ride, 2008 HHR SS. Build under way.
Loudest score ever = 171dB
2009 dB Drag Racing, North American Points Champion

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i can somewhat understand a folded horn but i would still like a draw up so i can know excatly what happens and i have no clue what a bandpass tline is haha so two draw ups and explainations would be perfect

Roseville, CA

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haha, yup, but it has to be proper cone area to enclosure to cabin volume ratio.

If I added more cone area, my numbers would go down.

lol bro i guess im going to have to email you in the future and take some serious notes haha but i am very intrested to find out new things and how they work but also why they work

Roseville, CA

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listen to freverbmpn too.

He knows what he is talking about and I am sure he has good tips.

Especially the folded horn.

a true exponential horn wouldnt fit in a common vehicle, so a folded horn has great potential.

Ed Lester

ShowtimeSPL Host

Showtime Electronics Video Marketing

My old Build Log
http://www.stevemead...08/#entry511451

http://www.youtube.com/showtimespl



TeamDeadlyHertz-HHREd.png


5 time dB Drag Finalist
Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music

New Ride, 2008 HHR SS. Build under way.
Loudest score ever = 171dB
2009 dB Drag Racing, North American Points Champion

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see if this one works....

sundown.jpg
I have a ritual called "terminator". I crouch in the shower in the "naked terminator" pose. With eyes closed I crouch for a minute and visualize either Arnie or the guy from the 2nd movie. I then start to hum the T2 theme. Slowly I rise to a standing position and open my eyes. It helps me get through my day. The only problem is if the shower curtain sticks to my terminator leg. It sorta ruins the fantasy.
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nm... photofukit down, and my pics on my comp are to large to upload

But CC Audio did a bandpass tline for his boat, he has a build log here, and its a sick box build

http://www.stevemeadedesigns.com/board/ind...733&hl=1979

sundown.jpg
I have a ritual called "terminator". I crouch in the shower in the "naked terminator" pose. With eyes closed I crouch for a minute and visualize either Arnie or the guy from the 2nd movie. I then start to hum the T2 theme. Slowly I rise to a standing position and open my eyes. It helps me get through my day. The only problem is if the shower curtain sticks to my terminator leg. It sorta ruins the fantasy.
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Share on other sites

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