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Old 24th November 2007, 07:53 PM   #1
TWOJZ is offline TWOJZ  Australia
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Default One Day Wall... *pics inside*

I decided to enter a local SPL competition (first one here in ages) but, they pretty much had no rules...

there were two classes, "novice" and "pro"... novice, is one 12inch sub, two 10inch subs, or less... pro, is anything more than that...

walls are allowed, second batteries are allowed, engine is allowed to be reving to 2000rpm...

so, friday morning, about 11am, a wall was started... the competition was saturday at 11am...

300litres, tuned to 35Hz... (edit, ended up being 330litres, tuned to 37Hz maybe a bit lower)

second battery has been added (bolted to the passenger side floor) DD Z1 is running the subs

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Old 24th November 2007, 08:03 PM   #2
TWOJZ is offline TWOJZ  Australia
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its 330litres, tuned to about 35Hz...
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Old 24th November 2007, 10:03 PM   #3
MadMutt is offline MadMutt  Australia
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And ?????

Suspense is killing..

Also, would it not work better if the 'wall' was up the back ?
Wouldn't that help with some sort of loading effect ?
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Old 24th November 2007, 10:08 PM   #4
grjr is offline grjr  United States
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Isn't 35Hz low for SPL? If you had it tuned higher it would probably be more efficient and you'd get more SPL out of it. Good luck with it though and have fun
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Old 24th November 2007, 11:41 PM   #5
TWOJZ is offline TWOJZ  Australia
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tuning high is no fun!

I want loud music!
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Old 24th November 2007, 11:57 PM   #6
adason is offline adason  United States
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Also, would it not work better if the "wall" had speakers?
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Old 25th November 2007, 01:53 AM   #7
Clipped is offline Clipped  Thailand
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cool, i was thinking about doing a similiar setup, but with 3 each side vertical...but may be going with 9 -12's instead...

what kinda subs you got in there? and amps?

get loud?

btw i have the same vacuum cleaner...
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Old 25th November 2007, 02:10 AM   #8
ppia600 is offline ppia600  United States
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I think you are going to wake the kitten

Are you going to seal the cabin from the box back?
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Old 25th November 2007, 07:43 AM   #9
TWOJZ is offline TWOJZ  Australia
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did 150.6dB at 40Hz...

I need to seal the box from the cabin...

cat was meant to be my helper!

I measured the amplifiers current draw later, and found out that I was only giving the subs about 1300watts rms...



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Old 25th November 2007, 09:46 AM   #10
luka is offline luka  Slovenia
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Hi

Only 1300w? How did you wired speakers? what was voltage on bat when you measured that current, which was?
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