Dayton DC160 as a sub?

mateo88 · 23rd April 2005, 07:22 PM

I was wondering if the 6.5" Dayton DC160 would be suitable as a subwoofer. It looks pretty nice in a .5 ft^3 box tuned to 30 hz, and with cabin gain (this sub would be for a car) it seems like it would do well. Anyone care to give me some input?

Thanks

Matt

mateo88 · 23rd April 2005, 08:30 PM

Sorry, I forgot to include the T/S parameters:

Qts: .33
Vas 27.8 l
Fs: 33 Hz
Qms: 2.75
Qes: .37
Xmax: 3mm
SPL: 88db 1w/m
Re: 6 ohms
Le: 1.4

power: 50w/75w

HWV · 23rd April 2005, 09:59 PM

Hi Matt-

I ran the numbers through a spreadsheet simulator (excelsub.xls). I used the specs for the 4ohm version (DC160S-4). The T/S params were slightly different than posted.

The main limiting factor is the small xmax. In a 15l ported box (~.5 cu ft, tuned to 42.6hz), the input power before reaching xmax is only 13 watts. In a tiny sealed box (3.8l, ~.14cu ft), power handling is slightly better, at 20 watts.

In car SPL (with cabin gain) was 105 db @ 47.8hz with 13 watts for the ported box; with a rapid decrease in spl below that.
For the sealed box, max spl was ~101 db @ 110hz; dropping smoothly to 95 db @ 20hz. (20 watts input)

The sealed box is self-limiting the drivers' excursion. The ported box needs some sort of hi-pass (subsonic) filter to keep the driver from bottoming out. (35hz Q=.707 would work nicely).

This is where I snagged the cool spreadsheet:
http://www.geocities.com/adrian_mack/

-Hans

mateo88 · 23rd April 2005, 10:39 PM

Cool, thanks Hans! I figured the x-max would be the limiting factor, but I wasn't sure how to find out how far the driver could go. Much appreciated.

-Matt

23rd April 2005, 07:22 PM	#1
mateo88 diyAudio Member Join Date: May 2004 Location: Argyle, Texas	Dayton DC160 as a sub? I was wondering if the 6.5" Dayton DC160 would be suitable as a subwoofer. It looks pretty nice in a .5 ft^3 box tuned to 30 hz, and with cabin gain (this sub would be for a car) it seems like it would do well. Anyone care to give me some input? Thanks Matt

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23rd April 2005, 08:30 PM	#2
mateo88 diyAudio Member Join Date: May 2004 Location: Argyle, Texas	Sorry, I forgot to include the T/S parameters: Qts: .33 Vas 27.8 l Fs: 33 Hz Qms: 2.75 Qes: .37 Xmax: 3mm SPL: 88db 1w/m Re: 6 ohms Le: 1.4 power: 50w/75w

23rd April 2005, 09:59 PM	#3
HWV diyAudio Member Join Date: Aug 2004 Location: Puget Sound	Hi Matt- I ran the numbers through a spreadsheet simulator (excelsub.xls). I used the specs for the 4ohm version (DC160S-4). The T/S params were slightly different than posted. The main limiting factor is the small xmax. In a 15l ported box (~.5 cu ft, tuned to 42.6hz), the input power before reaching xmax is only 13 watts. In a tiny sealed box (3.8l, ~.14cu ft), power handling is slightly better, at 20 watts. In car SPL (with cabin gain) was 105 db @ 47.8hz with 13 watts for the ported box; with a rapid decrease in spl below that. For the sealed box, max spl was ~101 db @ 110hz; dropping smoothly to 95 db @ 20hz. (20 watts input) The sealed box is self-limiting the drivers' excursion. The ported box needs some sort of hi-pass (subsonic) filter to keep the driver from bottoming out. (35hz Q=.707 would work nicely). This is where I snagged the cool spreadsheet: http://www.geocities.com/adrian_mack/ -Hans

23rd April 2005, 10:39 PM	#4
mateo88 diyAudio Member Join Date: May 2004 Location: Argyle, Texas	Cool, thanks Hans! I figured the x-max would be the limiting factor, but I wasn't sure how to find out how far the driver could go. Much appreciated. -Matt

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