Hello đź‘‹
I'm planing a 2.1 BT "boombox" and looking for a radical design, I was wondering if I Can use a thick flexible pipe as a woofer port? Will this affect the ports proformance? Is it totally not recommended ?
I'm planing a 2.1 BT "boombox" and looking for a radical design, I was wondering if I Can use a thick flexible pipe as a woofer port? Will this affect the ports proformance? Is it totally not recommended ?
There is some precedence for this as KEF use 'Flexible Port Technology' where the port wall is made of a soft polymer compound.
Without access to advance testing equipment and a LOT of time, stick with a rigid pipe of suitable dimensions with adherence to the obligatory flaring and equality of flow at both ends to avoid port rectification. Most ports are way too small resulting in reduced output and increased distortion. I always start with a port having an area equal to Sd and compromise until it fits in the box. Only once in 45 years have I been able to achieve a design which had equality! Try also to keep the length of the port to twice its diameter or less.
There is plenty of good information on line if you dig deep enough - leave flexible ports to the Big Boys!
There is plenty of good information on line if you dig deep enough - leave flexible ports to the Big Boys!
Not the spirit of DIY there... Measuring volume at the outlet of a port isn't hard, and differential measurements before and after changes are powerful.
Sorry Actually it's a subwoofer and not a woofer. I'm planing to use the Tang Band W3-1876S Subwoofer, in a 1.3L box And according to WINISD a 2.5 cm diameter shape will need a 30-40 cm long port...dose that make any sense?