8" Box Plans - By Me --> 0.65 Cu.ft // 28.4Hz // 9.721 Sq.Inch

[8adk1d 0]

I know it may take some time specially being designed in mm (As I live in Aus) but can someone or as many people as possible confirm roughly these figures???

Also, feel free to use this design and enjoy!!!

BOX HEIGHT IS 260mm, 224mm are Internal Dimensions as all pieces join to TOP/BOTTOM ------------

--------- Also I designed this for a 8" Rockford Fosgate P2D28 sub w/ a bit of extra port area for sub upgrades that may have up to 13mm in XMAX such as say a DD sub (P2D28 has 9.5mm)

Edited September 17, 2010 by 8adk1d_18y0

[8adk1d 0]

Also TOTAL OUTSIDE BOX DIMENSIONS ARE:

- Width = 500mm

- Height = 260mm

- Depth = 350mm

Edited September 17, 2010 by 8adk1d_18y0

[helotaxi 46]

Technically neither of the marked port lengths is correct for the effective length. Add another half port width to config 2 to get the correct effective length.

[8adk1d 0]

Technically neither of the marked port lengths is correct for the effective length. Add another half port width to config 2 to get the correct effective length.

Hmm ok, but its close though yea? tuned around 28/29hz?

[Kanaworm$ 292]

When you calculated your port lenght did you measure straight down the middle?

[8adk1d 0]

When you calculated your port lenght did you measure straight down the middle?

I measured both outside and inside and then worked out the middle distance from that......the calculator said its working it out for the inside length?? (Carstereo.com)