posted
What are ya hitting, what song, and how do you deal with the low thermal abilities that a low woofer qty(4 or less woofers) has compared to the guys with 8 or more subwoofers?
For me 156+ is very tough with the four 15's with clean power, dirty power with risk to the woofers would be almost 157. I don't need dead woofers lol.
I will be trying out a forced air cooling method I developed a number of years ago. I will let you know what effect it has. Just let me know who I can email to explain how it works.
Song so far is Bass Mekanik "Bass Mekanik" but will change when I drop the note.
-------------------- -Donald Hebig -All Out S.P.L. Saskatchewan's dB Drag event promoter -Check the Termpro homepage partners for the companies I support. Posts: 2608 | From: Borden, Saskatchewan. Canada | Registered: Feb 2000
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posted
Don your build is not a SPL on the mic oriented right? IF you do a normal vented box with 4x 15 the pressure on the mic would raise substancially, you could burp 63-64 and BR the 59.9 I think.
quote:Originally posted by murilo@soundigital.com.br: Don your build is not a SPL on the mic oriented right? IF you do a normal vented box with 4x 15 the pressure on the mic would raise substancially, you could burp 63-64 and BR the 59.9 I think.
It is a ported box. I could put all the subwoofers on the passengers side but then I lose a bit of open door spl, can't have that. I will lose a bit of top end spl once I drop the tuning to 30-34hz but it will also help open door output.
-------------------- -Donald Hebig -All Out S.P.L. Saskatchewan's dB Drag event promoter -Check the Termpro homepage partners for the companies I support. Posts: 2608 | From: Borden, Saskatchewan. Canada | Registered: Feb 2000
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2008 World finals ss 1/2 3rd with a 154.5 2007 World Finals ss 1/2 NW 3rd with a 150.0 Posts: 1822 | From: n w ohio | Registered: Dec 2006
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quote:Originally posted by Bernie Madoff: Very nice and original Don.
Funny you say that hehe I was messing with bandpasses, drivers side ports and decided open door pressure is more important. I may have given up like 2-3dB closed up with the center port but its gonna work out better for what I want(Psyclone). And the vehicle has an original look to it.
As for original, I like to present easy and simple solutions to potential new competitors. This design is a very simple drop in box that is simply walled off in the front. Lots of wasted space but its only for the four 15's. If I upgrade then a cage would be used.
-------------------- -Donald Hebig -All Out S.P.L. Saskatchewan's dB Drag event promoter -Check the Termpro homepage partners for the companies I support. Posts: 2608 | From: Borden, Saskatchewan. Canada | Registered: Feb 2000
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quote:Originally posted by dB Don: What are ya hitting, what song, and how do you deal with the low thermal abilities that a low woofer qty(4 or less woofers) has compared to the guys with 8 or more subwoofers?
For me 156+ is very tough with the four 15's with clean power, dirty power with risk to the woofers would be almost 157. I don't need dead woofers lol.
I will be trying out a forced air cooling method I developed a number of years ago. I will let you know what effect it has. Just let me know who I can email to explain how it works.
Song so far is Bass Mekanik "Bass Mekanik" but will change when I drop the note.
what note is that for don and what score does it burp?
-------------------- Posts: 432 | From: derbyshire, england | Registered: Dec 2002
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posted
Currently its peak is 49hz and last best burp score so far is at 159.55 before my work done last.
The note is a tad high so the tuning will be moved to around 30-34hz so I would expect a bit of peak score drop along with the peak note drop. But I will gain output with the doors open.
Hope that helps.
-------------------- -Donald Hebig -All Out S.P.L. Saskatchewan's dB Drag event promoter -Check the Termpro homepage partners for the companies I support. Posts: 2608 | From: Borden, Saskatchewan. Canada | Registered: Feb 2000
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