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1x12 extension cab build


bobmeyrick

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A while ago I had my Sessionette amp upgraded, and finding some spare 18mm plywood in my garage, I decided to build a matching 1x12 extension cab. The build was pretty straightforward - I used a router to cut the hole in the baffle, which was much easier than using a jigsaw. I used ivory leatherette to cover the cab and Fender Oxblood grille cloth. The speaker is a Jensen P12N which i had spare. Some pics...

 

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Now I'll have to recover the Sessionette to match...

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Very nice! I am curious as to why you made it an open back?

No reason other than I quite liked the look of those Dumble cabs, so while I had the router out I thought I'd give it a go! I may try a closed back, as I still have some spare plywood... :laughing7:

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Cool! Did you screw in corner braces? Your lap joints may give under sizable, volumetric pressure.

 

You did a fine job. Especially around the rear opening; whaf!

 

Congrats.

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Cool! Did you screw in corner braces? Your lap joints may give under sizable, volumetric pressure.

 

Yes I did - I countersunk the screws and used filler to cover the screw heads. Next time I'll try dovetails... :laughing7:

 

I've also recovered the Sessionette to match - pics to follow!

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Once you tune in your router and dove tail fixture, they are easy and reliable to create. Dados are fun too.

 

That cab came out splendidly!

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That's inspirational.

I've been collecting pieces to a similar project and had almost given up.

 

Your results have given me a good shove off the fence.

Hurrah! One of the nice things about this forum is that it can provide inspiration and share knowledge. It's very satisfying to create something.

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Does the lack of finger jointed make a difference in the cab? I have a 1x12 cabinet, that is actually nailed together. Sides are pine, but top is a chunk of flame maple.... Looks cool, but I'm not sure about durability.

I don't think so - having researched cabinet building on the internet, I found quite a lot of designs used lap joints reinforced with wooden battens. Mine was glued and screwed .together, and that should be strong enough - some woodworking glues claim to be "stronger than the wood itself"!

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  • 4 weeks later...

Having been enthused by building one cab, I only went and built another! This one is to go with my Ceriatone OTS. I was originally planning to use Vox Black Diamond grille cloth, but that proved hard to find so I went with Marshall "Chequer Board" instead.

 

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