"Modifying" Suggestion from Enclosure Calculator...

[Heathen]

I am wanting to use a design from the RE Audio calculator, but instead of one port, I wanted two (one at either side of the Sub).

Keeping "Square Port Width" and "Square Port Length", can I just halve the height, and the frequency would remain?

FYI - http://reaudio.com/box.php

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[hispls 5,000+ posts]

Keeping "Square Port Width" and "Square Port Length", can I just halve the height, and the frequency would remain?

Yes, but the RE port calculator app is known to be inacurate. Download winISD

 

[Heathen]

Thanks for the suggestion. I'll have a look at that program this weekend.

Just out of interest - if I want to tune a box to 30Hz, could I put in two 15Hz ports? Or is that not directly proportional?