Reflex Port/Vol Relationship

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   Hi 
I originally listed this in the newbie section, becaiuse for loudspeaker builders i guessed it is a newbie question, but go no bites.

So i have a design of a basic square sub with an  18" driver. 600x600x600mm

Keeping the driver the same, if i reduce the volume of the cabinet from 173L to 160ish is there a simple calculator that allows me to calculate the change in port length/size required to meet the same tuning?

so everything is remaining the same except i am shaving 2cm off the width and height  of the box, but adding 2cm to the depth.

Realistically how much effect is this going to have anyway on a 173L box?

building this http://boyzpc.home.xs4all.nl/Bouwtekeningen/SL/118a%20subkast.pdf

i know i can fit two 58cm cabinets (guess what brand) side by side, two high in my van and its snug, so wanna build something that i can get in there in the same arrangement.

thanks in advance

s.

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SwenK Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 04 February 2009 Location: Cornwall Status: Offline Points: 191	Post Options Post Reply Quote SwenK Report Post Thanks(0) Quote Reply Topic: Reflex Port/Vol Relationship Posted: 04 February 2012 at 4:01pm
	Hi I originally listed this in the newbie section, becaiuse for loudspeaker builders i guessed it is a newbie question, but go no bites. So i have a design of a basic square sub with an 18" driver. 600x600x600mm Keeping the driver the same, if i reduce the volume of the cabinet from 173L to 160ish is there a simple calculator that allows me to calculate the change in port length/size required to meet the same tuning? so everything is remaining the same except i am shaving 2cm off the width and height of the box, but adding 2cm to the depth. Realistically how much effect is this going to have anyway on a 173L box? building this http://boyzpc.home.xs4all.nl/Bouwtekeningen/SL/118a%20subkast.pdf i know i can fit two 58cm cabinets (guess what brand) side by side, two high in my van and its snug, so wanna build something that i can get in there in the same arrangement. thanks in advance s.
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hmaudio Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 03 April 2009 Location: Nottingham Status: Offline Points: 2683	Post Options Post Reply Quote hmaudio Report Post Thanks(0) Quote Reply Posted: 04 February 2012 at 4:03pm
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