Does port volume matter?

[Blackedout]

Area = LxWxH

Volume = LxWxH

Can you distinguish what the difference is besides the frequency the port is tuned at Tacoma guy?

area = LxW or HxW or well, you get the idea.

That's surface area. Area is in cubic units. Three dimensions

[SCS_Audio]

Area = LxWxH

Volume = LxWxH

Can you distinguish what the difference is besides the frequency the port is tuned at Tacoma guy?

Incorrect. Area is length x width (or pi r^2 for a round port)

Port area affects how loud you can get, power handling, and port noise.

Port length affects the tuning.

Port volume is the result of the picked cross sectional area and tuning length.

[MrSkippyJ]

yes the port is in the box. but to get the port area you only measure the height and width. that gives you area.

then you measure the length (inside the box) to figure out how much space (volume) your port takes up.

2 different things: area and volume

[Blackedout]

Area = LxWxH

Volume = LxWxH

Can you distinguish what the difference is besides the frequency the port is tuned at Tacoma guy?

You said port.volume of 12-15 sq inches. I've never heard that, always hear port area of 12-15 sq inches

I have a 20 cubic foot box with 4 18s. 12-15 sq inches of port is enough?

Edit... I think I see what your getting at... Take away volume...

[MrSkippyJ]

Area = LxWxH

Volume = LxWxH

Can you distinguish what the difference is besides the frequency the port is tuned at Tacoma guy?

area = LxW or HxW or well, you get the idea.

That's surface area. Area is in cubic units. Three dimensions

surface area and area are the same thing. volume is in 3 dimensions.

[SCS_Audio]

Area = LxWxH

Volume = LxWxH

Can you distinguish what the difference is besides the frequency the port is tuned at Tacoma guy?

You said port.volume of 12-15 sq inches. I've never heard that, always hear port area of 12-15 sq inches

I have a 20 cubic foot box with 4 18s. 12-15 sq inches of port is enough?

[MrSkippyJ]

lol ^^

[SCS_Audio]

A 12 sq inch port would be 4" x 3"

Does that sound like enough for 4 18" woofers to push air through?

I am guessing you have a wall with 20 cubic feet?

Torres will give you an estimated port area range for your given box size. Put a 20 cube box in there and see what it says.

[Skrilla]

nvmd

[321slapinbass]

optimum port area should be between 14 and 16 in^2 of port per cube. to find this out you need to multiply the width and height of your port opening. so if your box is 2 ft^3 and you need 15 in^2 per cube then you can make your port "2.5 x 12" and get 30" total. now divide the total by the box volume. 30 / 2 = 15. *15 in^2 per cube*

Area = LxWxH

Volume = LxWxH

Can you distinguish what the difference is besides the frequency the port is tuned at Tacoma guy?

You said port.volume of 12-15 sq inches. I've never heard that, always hear port area of 12-15 sq inches

I have a 20 cubic foot box with 4 18s. 12-15 sq inches of port is enough?

15 sq inches per cube. you have 20 cubes so do 15 x 20 to get 300. you need 300 sq inches of port total.