I need some help with building a 18 sub

[dino]

Hello . I dont have the room for a huge cabinet . what is the smallest size cab I can use for max bass and also what size port do I use. thanks dino

[spkrman57]

How low must it go?

How loud must it be at the lowest notes?

How large is your roomsize?

What amp are you driving it with?

What is the highest frequency the sub must operate up to?

These answers will help us answer your question!

Regards, Ron

[hjames]

Hello . I dont have the room for a huge cabinet . what is the smallest size cab I can use for max bass and also what size port do I use. thanks dino

You gonna put another 18 in that room?
Hoo-boy!

[dino]

How low must it go?

How loud must it be at the lowest notes?

How large is your roomsize?

What amp are you driving it with?

What is the highest frequency the sub must operate up to?

These answers will help us answer your question!

Regards, Ron until I feel it hit me in my chest befor I hear it. room size is 12 by 12
parasound hca 3500 but I might buy a crest ca-9 for the sub
no higher than 300 hz

[Robh3606]

Hello Dino

Download WinIsd and figure it out.

Rob:)

[sourceoneaudio]

What driver? Then go from there.

Also 300hz is to high, major hump up to that frequency with those other 18" drivers. I would say the highest I would cross it would be 70hz. I would rather have a hump up to 70hz than all the way up to 300hz. might sound like a giant boom box.

[dino]

Hello Dino

Download WinIsd and figure it out.

Rob:)
thanks I did figure it out inside height 32 inch
w-26.1
d-22.6 = 10 cubic ft
6 ports 4 inch in diam 15.2 inch long
this is tune to 30hz