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Tapered Quarter-Wave Tube     Tapered Quarter-Wave Tube
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Old 22nd January 2012, 03:53 PM   #1
gafhenderson is offline gafhenderson  United Kingdom
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Default Tapered Quarter-Wave Tube Tapered Quarter-Wave Tube

with Tapered Quarter-Wave Tubes, can they be done with multiple drivers per enclosure/transmission line?

if so how does this change the design brief?

thanks.
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Old 23rd January 2012, 12:38 PM   #2
bjorno is offline bjorno  Sweden
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[QUOTE=gafhenderson;2873545]
Quote:
..with Tapered Quarter-Wave Tubes, can they be done with multiple drivers per enclosure/transmission line?..
Hi, Yes

Quote:
..if so how does this change the design brief?..
Brief: Not much but depends on how the drivers are mounted.

b
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Old 23rd January 2012, 12:57 PM   #3
gafhenderson is offline gafhenderson  United Kingdom
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[QUOTE=bjorno;2874620]
Quote:
Originally Posted by gafhenderson View Post

Hi, Yes



Brief: Not much but depends on how the drivers are mounted.

b
can you spare any time to give me some links or pointers for how to properly set up multiple drivers?

i have a single driver cabinet designed, and depending on how multiple drivers change the design parameters, i was just going to use 2 independent lines/cabinets stacked.

thanks.
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Old 23rd January 2012, 01:02 PM   #4
bjorno is offline bjorno  Sweden
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Hi,

You may find relevant info here:

General Speaker Related Articles


b
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Old 9th February 2012, 11:10 PM   #5
gafhenderson is offline gafhenderson  United Kingdom
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is there software like winISD that models this type of enclosure easily? something i can use to see what the below looks like compared to the vented isobaric design winISD has suggested.

thanks.

mh-audio Tapered Quarter Wave Tube

using that it gave me this.

Fs - 37.4
Sd - 520
Fr - 37.4
inside width - 38.77
sa/sd - 1
se/sd - 3

Height (H) : 118.5 [cm]
Width(W) : 40 [cm]
Depth(D) : 53.9 [cm]

T1 : 13 [cm]
T2 : 26 [cm]
T3 : 91 - 98 [cm]
T4 : 93 [cm]

Dv : 12.9 [cm]
Lv : 19 [cm]
Pipearea : 130.7 [cm2]

Vb : 248.4 [liters]
F3 : 25.2 [Hz]

Linelength : 228.61 [cm]
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Old 10th February 2012, 02:20 AM   #6
tb46 is offline tb46  United States
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Location: Texas
Hi gafhenderson,

The entry point is probably Hornresp, and from there AkAbak. I don't know what the status of Martin King's mathcad design spreadsheets is, you may want to look for his website.

Regards,
__________________
Oliver
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