Step by Step - How to build a speaker cab.

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This one isn't as detailed as the head cab was. The process is VERY similar though, so you can read through the head cab thread first and come back to this one for everything else.

It's starting to become a tradition for me to build a cabinet of some type around Thanksgiving. Since I'm at my parents' house on Thanksgiving anyway, for two years in a row now I've taken some wood with me and used my dad's table saw to make some finger joints for cabinets. Last year it was a head cabinet, this year it's a pair of 112 speaker cabinets. I'm doing two only because the tweed and grill cloth come in wide sections, so I'll have to order enough to cover two cabinets. I figured building two was not much more work than building one, so I'm building two in the hopes of selling one at or near cost in order to cut my losses. I'm going to use this cab with my Classic 30. They are going to be solid pine with 3/4" birch ply speaker baffles and a 1/4" birch ply rear baffle. They'll be closed back cabs and will be covered in tweed with a brown grill cloth. I'm getting the tweed and grill cloth from Peavey, so they should match the Classic 30 perfectly (other than the fact that my C30 is a little road worn already).

Anyway, I didn't take pics of the finger joint cutting process, but I've got pics of that process from my last build, so I can re-post those if you want to see.

Last night when I got home, I glued up one of the cabs and let it dry overnight. This morning I glued on the runners for the speaker baffle and glued and clamped up the second cabinet.

So, here are the pics of what I have so far:

The cut wood:
Cut.jpg


The cabinet glued and clamped:
Clamped.jpg


What the corners look like with the fingerjoints:
ClampedCorner.jpg


And the runners for the speaker baffle:
SpeakerBaffleRunners.jpg


That's all for now. This evening after work, I'll probably get the runners for the rear panel glued in, and the runners for the speaker baffle on the second cab glued on. I've got a party to go to tonight though, so I probably won't get the hole cut for the speaker until tomorrow.

Total cost for the wood for both cabs: $41. Time spent so far: about an hour or so.
 
I got a little ahead of myself over the weekend and didn't update the thread. I have one cab pretty much finished up. I'm just waiting for the tweed and grill cloth.

For the second cab, after I unclamped it, I glued on the runners for the speaker baffle and let it dry. Then I used a router on a table with a straight bit and a guide bushing to flush up the ends of the joints with the sides of the cab, then put on a 1/2 roundover bit and did all the corners.

Roundover1.jpg


Roundover2.jpg


I still need to sand it down. Next will be gluing the rear baffle runners into place.

Here are some pics of the cabinet I have nearly finished. This will give you an idea of what it's going to look like. Just imagine it with tweed and grill cloth that matches the Classic 30.

Front1.jpg


Back1.jpg


WithAmp1.jpg


SideBySide.jpg
 
I got my tweed and grill cloth a couple of days ago and had a chance last night to work on getting a cab covered. One is finished. The other I still need to do some work on before getting it covered. I'll take pics of the process on the second one. I just wanted to get this one done, so I didn't take pics until it was finished.

DSC01958.jpg


DSC01955.jpg


DSC01956.jpg








I told you it wasn't as detailed as the head cab thread. I think the head cab thread is detailed enough that you can tell what's going on though.
 
micwalt said:
That looks effing awesome!
AOK

Thanks.

I've got another one finished except for hardware, tweed and grill cloth, but I don't really have any motivation to finish it.

I was originally going to sell it (I only built it because the tweed and grill cloth came in pieces big enough for two). However, by the time I bought the hardware and everything, I'd probably have close to $100 into the cab not counting a speaker.
 
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