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Old 21st May 2005, 10:00 PM   #1
theCat is offline theCat  Argentina
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Default Building my first 4th order BP box, any suggestions?

I am building my first BP box to use in my HT setup. I am using a 12 inch car audio driver (audiopipe tsv12), I ran it on Winsid and the curve is the following. Do you think it will sound nice on a home setup? I plan on crossing it at 70 hz, but I am afraid of "one tone bass". Any suggestions?

Thanks in advance!
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Old 21st May 2005, 10:28 PM   #2
simon5 is offline simon5  Canada
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With a bandpass like this, you'll only get output from about 40 Hz to 60 Hz... I think you can do better, unless you're looking at high SPL only.
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Old 22nd May 2005, 08:10 AM   #3
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Default Re: Building my first 4th order BP box, any suggestions?

Quote:
Originally posted by theCat
Any suggestions?
Yes. Don't build a bandpass box.
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Old 22nd May 2005, 05:23 PM   #4
theCat is offline theCat  Argentina
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Haha hard answer!

Thing is, WinISD suggests either a sealed or 4th order BP due to high EBP, so that´s why I am going for that design........

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Old 23rd May 2005, 12:50 AM   #5
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I'm with grumpy Bill. I've never heard a bandpass sound good anywhere but in a car.
Not natural sounding

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Old 23rd May 2005, 01:06 AM   #6
RJ is offline RJ  United States
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The sound quality of a 4th order bandpass isn't that great.
For kick a** bass I recommend a dual-chambered bass reflex;
http://www.diysubwoofers.org/prt/dual_chamber.htm
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Old 23rd May 2005, 07:26 AM   #7
theCat is offline theCat  Argentina
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These are the specs of the speaker:

QTS 0,56
QMS 3,85
VAS 54,4 L
QES 0,62
FS 33hz
SPL 88 db
RE 2x4 ohm
PE 300 w
Le 1,85
Xmax 8,0

Does anyone think it can work on a ported box?
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Old 23rd May 2005, 07:59 AM   #8
simon5 is offline simon5  Canada
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Yes, it can always work in a ported box, I never look at the EBP number.

You could tune it around 20-25 Hz I guess.
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Old 23rd May 2005, 05:01 PM   #9
RJ is offline RJ  United States
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I get 24 hz. F3 & Fb
Box size 13wx24hx22d
Port 3" x 19 1/4"
At 24" high the board that seperates the two chambers would be 8"
So the small chamber would be 8" the large chamber would be 16".
Power rating before Xmax & Port Chuffing is 150 watts.
Both at 25 hz.
Total box volume is 87 litres.

Yes, It's Do-Able!!!
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