Now Torress and this box specs seem off?

[mdwerner6942]

Item Description

Width: 25"

Depth: 21 1/2"

Height: 16 1/2"

Gross Airspace: 4.12 Cu.Ft.

Net Airspace: 3.5 Cu.Ft.

Port Dimensions: 15" X 2 1/2" X 28 3/4"

Port Volume: .62 Cu.Ft.

Tuned @ 29hz

One spring loaded speaker terminal.
Constructed of industrial U.S. grade 3/4" MDF.
Covered with industrial grade trunk liner carpet.
Quality glued and sealed with hotmelt glue.

Got net of 3.01

[Joe X]

Set common walls to 3.

[mdwerner6942]

Set common walls to 3.

Thanks, still seems little small but not as bad-port area little shy. I wondered just needed a temp for now, descent wood build but still unsure but again thank you.

[Joe X]

Doing my own calcs the box is 3.3 net BUT once the sub is inside it will go down to 3.1, the 37.5 square inches of port area will be enough for a single very entry level 15" like an RF P2 15".

[mdwerner6942]

Doing my own calcs the box is 3.3 net BUT once the sub is inside it will go down to 3.1, the 37.5 square inches of port area will be enough for a single very entry level 15" like an RF P2 15".

HDS315, 15" subwoofer. 17.5"H x 26"W x 20"D. 4.027^3ft gross vol. Slot port, 16"H x 2.5"W @31Hz. After all displacement, 2.947^3ft net vol. Built from 3/4"High Quality, Multi-Ply Birch Hardwood; A very Stable and Strong panel that is Tough, Durable, and Light Weight, and has been shown to perform very well acoustically! All are built with a 1.5" thick reinforced baffle board and are fully braced where needed. Driver holes cut to the subs specs. Deflection boards in all corners to kill standing sound waves.

[mdwerner6942]

Set common walls to 3.

Q 15 – We recommend using a sealed box in the neighborhood of 2-2.6 cubic feet of volume.

Ported box we recommend using 2.8-4 cubic feet @ 28-33Hz. Again use 12-16 square inches of vent area per one cubic foot of volume.

[mdwerner6942]

Set common walls to 3.

Q 15 – We recommend using a sealed box in the neighborhood of 2-2.6 cubic feet of volume.

Ported box we recommend using 2.8-4 cubic feet @ 28-33Hz. Again use 12-16 square inches of vent area per one cubic foot of volume.

Might just use a Q18 in a sealed box thanks for the input. Guess some like the SSA brand, parts maybe be from Nick Kevin place anyways happy holidays.

[mdwerner6942]

Set common walls to 3.

Thanks, still seems little small but not as bad-port area little shy. I wondered just needed a temp for now, descent wood build but still unsure but again thank you.

Box-

24 x 22.25 x 20" .75 MDF

Port 2.75 x 20.75 x 32

[Joe X]

That would be 6.15 cubic feet before driver displacement @ 25 Hz about 57 square inches of port area which would be rather low for a Q18.