View Full Version : Need help understanding tuning hz.

08-13-2009, 04:43 PM
These are straight from the RE Enclosure Calculator, I just need confirmation they are not completely ducked up.

Box Width: 35
Box Height: 17
Box Top Depth: 20
Box Bottom Depth: 20
Wood Thickness: 0.75
Square port height: 15.5
Square Port Width: 3.5
Square Port Length 1: 15.75
Square Port Length 2: 0
Total Port Length: 21.75
Square Port Diam.: 8.311031542
Square Port Area: 52.25
Square Port Volume Internal: 1179.9375
Square Port Volume Displaced: 1191.1875
Box Volume(Ft3): 4.87
Box Volume(In3): 8414.9375
Tuned Frequency(Fb): 32.8371999648271

Im going for a box around 4.5 Ft3 with a tuned freq. around 32-33.
These numbers are before subwoofer and internal bracing displacement.

I just wanted to know what you guys think? Does anyone see any glaring flaws that I may have missed?

08-14-2009, 02:17 PM
shameless bump...

08-15-2009, 09:39 AM
port area is a little lite bight looks good / build it 4.87 is pretty big what's it for

08-15-2009, 09:47 AM
It is for a 15" CVX

Kicker recomends 50 sq. in of port for a 5 cubed box, however I can't fit a full 5 cubes lol. I can definitely live with a little less tho.

As long as I'm between 3-5 cubes I should be alright they say(kicker).

Should I go ahead with the build?

Or do you think the port is too small?

08-15-2009, 11:55 AM
yes build it
prob finish @ 4.5 after slugs and bracing
should be good

08-15-2009, 12:08 PM
Thank you for the feedback, I really appreciate it. I'll post pics when done. Got all the material yesterday, starting build...


08-15-2009, 12:54 PM
well hurry up