subwoofer transmission line

dcampbell1955 · 8th December 2003, 03:24 PM

I have a new construction site which will have a poured concrete stage with a front to back distance of approximately twenty feet. I am considering installing a pvc transmission line sub woofer configuration in this floor. Does anyone have suggestions/objections/general help?

sreten · 8th December 2003, 04:07 PM

I think a horn loaded design would be far more suitable for a stage, especially an outdoor one.

/ sreten.

Timn8ter · 8th December 2003, 09:36 PM

I'm not trying to be funny here, honest. I'm wondering if something similar to this would be a possibility.
Or this ?

Timn8ter · 9th December 2003, 06:33 PM

Steve Deckert built one in his basement too.
Steve's Tour

Go forward from this point through the slide show.

sreten · 10th December 2003, 12:17 AM

With the benefit of further thought a T/L design is entirely unsuitable.

Horn loading is the way to go and nearly all domestic designs will be unsuitable.

If its a commercial build you should use an acoustic consultant.

If its not then read up all the information from PA unit manafacturers.

Personally think caternary 20 ft long horns with the right mouth area would be
awesome and have exceptional bandwidth, but who designs the rest of the PA ?

/sreten.

dcampbell1955 · 10th December 2003, 01:43 PM

WE WOULD DESIGN THE REST OF THE SYSTEM. WE ALREADY HAVE AN EASE MODEL OF THE SPACE, AND ARE CONSULTING ON THE ACOUSTICAL TREATMENT NECESSARY TO TAME THE RT FROM AROUND 3.2 SEC AT 250HZ. IT'S NOT OFTEN THAT ONE ENCOUNTERS AN OPPORTUNITY TO CONSTRUCT HORNS OF THIS NATURE, AND, THAT IS WHY WE HOPED TO TAP THE EXPERIENCE OF OTHERS WHOVE HAD OCCASION TO IMPLEMENT THIS TYPE OF DESIGN.

THAK YOU ALL SO MUCH FOR YOUR INPUT.

Timn8ter · 10th December 2003, 06:23 PM

TAKE PICTURES PLEASE!

8th December 2003, 03:24 PM	#1
dcampbell1955 diyAudio Member Join Date: Dec 2003 Location: Iowa	subwoofer transmission line I have a new construction site which will have a poured concrete stage with a front to back distance of approximately twenty feet. I am considering installing a pvc transmission line sub woofer configuration in this floor. Does anyone have suggestions/objections/general help?

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8th December 2003, 04:07 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	I think a horn loaded design would be far more suitable for a stage, especially an outdoor one. / sreten.

8th December 2003, 09:36 PM	#3
Timn8ter diyAudio Member Join Date: Jul 2003 Location: Seattle, WA	I'm not trying to be funny here, honest. I'm wondering if something similar to this would be a possibility. Or this ?

9th December 2003, 06:33 PM	#4
Timn8ter diyAudio Member Join Date: Jul 2003 Location: Seattle, WA	Steve Deckert built one in his basement too. Steve's Tour Go forward from this point through the slide show.

10th December 2003, 12:17 AM	#5
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	With the benefit of further thought a T/L design is entirely unsuitable. Horn loading is the way to go and nearly all domestic designs will be unsuitable. If its a commercial build you should use an acoustic consultant. If its not then read up all the information from PA unit manafacturers. Personally think caternary 20 ft long horns with the right mouth area would be awesome and have exceptional bandwidth, but who designs the rest of the PA ? /sreten.

10th December 2003, 01:43 PM	#6
dcampbell1955 diyAudio Member Join Date: Dec 2003 Location: Iowa	WE WOULD DESIGN THE REST OF THE SYSTEM. WE ALREADY HAVE AN EASE MODEL OF THE SPACE, AND ARE CONSULTING ON THE ACOUSTICAL TREATMENT NECESSARY TO TAME THE RT FROM AROUND 3.2 SEC AT 250HZ. IT'S NOT OFTEN THAT ONE ENCOUNTERS AN OPPORTUNITY TO CONSTRUCT HORNS OF THIS NATURE, AND, THAT IS WHY WE HOPED TO TAP THE EXPERIENCE OF OTHERS WHOVE HAD OCCASION TO IMPLEMENT THIS TYPE OF DESIGN. THAK YOU ALL SO MUCH FOR YOUR INPUT.

10th December 2003, 06:23 PM	#7
Timn8ter diyAudio Member Join Date: Jul 2003 Location: Seattle, WA	TAKE PICTURES PLEASE!

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