I'm building the Sprite Boombox. To save on costs I would like to use regular PVC pipe for the vent tubes. The available diameters differ from the suggested values available here: https://sites.google.com/site/undefinition/sprite
Instead of 35 mm (1 3/8") I'm using 37 mm. How can I calculate the appropriate length of the vent tube?
Instead of 35 mm (1 3/8") I'm using 37 mm. How can I calculate the appropriate length of the vent tube?
Paul Carmody said:
I get 160mm (~6.3" length) of 37mm ID to tune 4 liters to 63Hz (~63.2) with George Augspurger's "VENTWRK
Try WinISD.... Though it's a little more involved than simply talking ports.
Or have a read....JL Audio header Support Tutorials Tutorial: Enclosure Ports
Or have a read....JL Audio header Support Tutorials Tutorial: Enclosure Ports
The pipe was actually 36 mm so I went with 6,14 inch. Unfortunately I have trouble with kind of a rattling Noise. Especially while playing music with deep bass.
I made a video playing Rihanna at a low volume. Does the driver move to much? What's the problem?
https://youtu.be/P8JlYBF6S-c
I made a video playing Rihanna at a low volume. Does the driver move to much? What's the problem?
https://youtu.be/P8JlYBF6S-c
It's important that the box is sealed (apart from the port). Running it with the lid off you are running it open baffle. The poor thing is probably bashing itself to pieces.
Don't run it loud (or at all) until each enclosure is buttoned up properly.
Don't run it loud (or at all) until each enclosure is buttoned up properly.
It's the same behaviour with the lid closed. Playing deep bass it makes this rattling noise. Does it have to be 100% airtight?
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