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Quick Precision Speaker Port Question

299 Views 4 Replies 2 Participants Last post by  sigpig
Hi guys. Just a quick one.

I'm designing a two way bass reflex speaker. For the port, the tuning freq is 55hz, diameter 2 inches and winISD recommends a length of 6.40 inches.

When putting this into Precision port calculator, these are the results I get:
Is it literally just telling me to make the center tube 2.5 inches long and then stick the two flared ports on each end? 2.5 inches seemed small to me, but I guess if with the ports the overall length is 7.5 inches it wont matter? Also does it matter that precision is recommending 7.5inches overall length but winisd is 6.4, or is is so miniscule that it will be inaudible?

Hope everyone's having an amazing bank holiday

All the best
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P.s, in the second photo, I don't anyone would know if those resonances would be audible? Thankyou in advance
I would post this in the DIY sub-forum: DIY Speakers and Subs
I would post this in the DIY sub-forum: DIY Speakers and Subs
Thankyou sir. My bad.
Thankyou sir. My bad.
No problems, just trying to help.
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