Transmission Line for subwoofer build

The sound is in 'phase' with wave coming off front of sub.

https://youtu.be/IkvUagEXf7w

Building a TL box w/sub

https://youtu.be/QisuofWF4Zk

https://en.m.wikipedia.org/wiki/Tran...ne_loudspeaker

Go an octave lower ?

Contemplating building one of these when we get in our new house...

You will love a TL ! and size is great .

Quote:

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Originally Posted by mumbles

Contemplating building one of these when we get in our new house...

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https://www.ebay.com/itm/4-4-Inch-40...gAAOSwqSRdaN5B

This is most promising speaker in 4" size I could find.
$25 from China

http://www.quarter-wave.com/