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» Termpro Audio Forum » Installer's Corner » Advanced Topics » many small ports/ one large port!!!

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Author Topic: many small ports/ one large port!!!
Jesse Scott
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what if i made like 15 1.5" ports instead of 2 4" ports would this be a good or bad idea
i want to try it but dont want to waste my time if it doesnt work

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Fatdog of Low Level Hz
2 Digital Designs 9012
1 USAmps USA-400
1 USAmps USA-425
and a EXP2 chromed
in a '88 Honda CRX Si

150 dB soon!!


Posts: 452 | From: State College, PA | Registered: Apr 2000  |  IP: Logged | Report this post to a Moderator
Atomic Fusion
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Well tons of small ports over a few large ones actually means a lot more port surface area, which means more port noise...

Adam

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System:
Undecided, as usual...
(__I__) HAIL CARTMAN!


Posts: 956 | From: London Ontario Canada | Registered: Apr 2001  |  IP: Logged | Report this post to a Moderator
Raydee
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NOISE!!!!!!!!!!!!!

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Posts: 83 | Registered: Jul 2001  |  IP: Logged | Report this post to a Moderator
Hertz_so_good
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not too mention there will be far more port surface area. this will cause friction with the sides of the ports, and slow down port velocity. the bigger the port the better

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Jeff
Sony CDX-7850
Sony XDP766-EQ
3 Sony 752-EQX
2 Sony ES 6.5 Seperates
2 Crossfire CFA-1000D (Only 1 for comp)
2 12" HX2s
All I want is 150, and I'll be happy

Official Member:
SAVE THE BACK SEAT FOUNDATION


Posts: 551 | From: Cali-fornicate | Registered: Oct 1999  |  IP: Logged | Report this post to a Moderator
Rybaudio
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Given the same total surface area, which I'm assuming you're gonna do, the smaller ports will have more resistance, and less output. Stick with one or two large ports, many small ones is not worth your time.

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rybaudio@freeze.com

The goal: Accurate musical reproduction in the mobile environment

SQ with a side of SPL


Posts: 3954 | From: Bloomington, IN | Registered: Sep 2000  |  IP: Logged | Report this post to a Moderator
   

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