box for subs.
1st Gear Member
Joined: Feb 2007
Posts: 117
From: 47201
RE: box for subs.
Primarily you need to know the airspace requirements of the sub(s) you plan on using. Be careful, recommended sealed box volumes are different than ported box volums.
If this is the first box you have made, I would recommend making sealed, because port tuning takes a little effort. Sealed box shape isn't very important, having the correct internal volume is.
I would use 3/4" MDF for a material, it's relatively cheap, fairly sturdy, easy to work with and has good acoustic properties.
Depending on how big you're building, a table saw is VERY helpful. A scrollsaw would be the very minimum, and it will be hard to make perfectly straight cuts with that. A regular circular saw can do OK straight lines.
#1 tip for cutting MDF cleanly: Have a sharp blade and go slow.
#2 tip: If you are cutting large pieces w/ a table saw, get a friend. 3/4" MDF is HEAVY.
Predrill all screw holes. Corner braces are recommended, but not absolutely necessary with 3/4" If you were using 1/2" MDF (useful for smaller boxes, it's lighter) you NEED some actual lumber for corner bracing.
On final assembly, I put a bead of wood glue (regular elmers would work too I suppose) on one mating surface before I screw it down (makes for a more airtight seal). I have heard from more than one person to spraypaint the inside of the box (doesn't matter what color) to seal the material itself. (Apparently MDF isn't 100% airtight itself).
My build thread https://camaroforums.com/m_120509/tm.htm
If this is the first box you have made, I would recommend making sealed, because port tuning takes a little effort. Sealed box shape isn't very important, having the correct internal volume is.
I would use 3/4" MDF for a material, it's relatively cheap, fairly sturdy, easy to work with and has good acoustic properties.
Depending on how big you're building, a table saw is VERY helpful. A scrollsaw would be the very minimum, and it will be hard to make perfectly straight cuts with that. A regular circular saw can do OK straight lines.
#1 tip for cutting MDF cleanly: Have a sharp blade and go slow.
#2 tip: If you are cutting large pieces w/ a table saw, get a friend. 3/4" MDF is HEAVY.
Predrill all screw holes. Corner braces are recommended, but not absolutely necessary with 3/4" If you were using 1/2" MDF (useful for smaller boxes, it's lighter) you NEED some actual lumber for corner bracing.
On final assembly, I put a bead of wood glue (regular elmers would work too I suppose) on one mating surface before I screw it down (makes for a more airtight seal). I have heard from more than one person to spraypaint the inside of the box (doesn't matter what color) to seal the material itself. (Apparently MDF isn't 100% airtight itself).
My build thread https://camaroforums.com/m_120509/tm.htm
Thread
Thread Starter
Forum
Replies
Last Post
