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Anyone here have any experience building guitar speaker/ amp cabinets?

Posted on 7/30/18 at 3:11 pm
Posted by Blizzard of Chizz
Member since Apr 2012
21608 posts
Posted on 7/30/18 at 3:11 pm
Any tips or tricks you can share? I'm building a 16" (H) x 16" (W) x 9.5" (D) combo amp. This is actually my second attempt, because unfortunately I found out the hard way that using new lumber from Home Depot is a bad idea. I constructed my box frame out of solid pine, but didn't consider the humidity. After having it outside for sanding this weekend, the box quickly bowed at the top after bringing it back inside.

Today I went to a reclaimed lumber supplier in Birmingham and picked up some old 1" heart pine. It's more dense than what I previously used, but I don't think I'll run into any warping issues because of it's age.

Posted by roadkill
East Coast, FL
Member since Oct 2008
2143 posts
Posted on 7/30/18 at 8:38 pm to
something real basic - glue and screw the box together - airtight - no nails.

something a little more involved - if you're going to port the box, there is a formula depending on the box dimensions and overall box volume (space not sound) - do a little research, get that part right, and the sound will improve.

something to consider - depending on the tone (sound) of the wood and the box dimensions, you might want to use sound deadening material inside the box to suppress echo and "booming".

Speaker quality is the single most important consideration.
Posted by Blizzard of Chizz
Member since Apr 2012
21608 posts
Posted on 7/30/18 at 9:20 pm to
I did some research beforehand. From what I’ve learned, the great sounding Fender amps/cabs were all built from pine, while the classic Marshall tone comes from a primarily birch construction. An open or closed back also plays a role too.

Originally I had planned on wrapping the finished product in the standard tolex vinyl, but now I’m rethinking that. With wood quality being so poor right now, I had to find alternative sources. What I ended up with is a piece of solid heart pine that’s probably 100 years old. That’s what is posted in the OP, and it would be a shame to cover it up with vinyl.

With this wood’s age and quality, I figured I better seek out some advice before I go cutting on it and ruin it.



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