2 X 12" Guitar Speaker Cabinet Box

I decided to build myself a GuitarBox, because the quality which I could find to buy, isn't worth the money.

They mostly look very nice, but the used wood is manly cheap chipboard.
I decided to use ply wood for a define tone and other advantages.
The rusult is a very solid speaker box - build to last!

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Step 1: Cutting & Glueing

I choosed to make a mortise connection, without the use of any screw.
And one more advantage, if you manage it, even professionals will admire your piece.

Step 2: Sandpaper Work

The next day, when the glue was dry, it was time to finish the speaker.
Breaking the edges to a good looking radius.
Working on wood is always a nice experience.

Step 3: Building the Front

I constructed the front to be taken out again. Maybe to replace it later, or to change a damaged cover..or whatever.

Step 4: The Cover

I used glue and a staple gun

Step 5: Foto Finish

After all was built together it looks like I imagined, although I must say, the camera captures the red cover different than it actually is. Actually more red than purple.
The box has got only a thin varnish, to keep the natural look and to see the work I've done.

The backside is made out of three pieces, so you can use it as closed model, or half open.

Used tools:
An electric drill, table circular saw, jig saw, milling cutter, sand papers, glue

I equiped the box with two Celestion Green Backs made in UK.
The speaker has in this finish 50 Watts and 16 Ω.

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    7 Discussions


    Reply 5 years ago on Introduction

    Be creative :) It is like 60*50*35 cm, I took orientation on stock models from Marshall and Mesa. It takes you 20 min to sketch it.

    The mortise connection is difficult to realize, because you need to be very accurate. Once you cut, you start to sweat, because you can destroy all.

    First step was, I cut all pieces to size, with 5 mm + to each site, from this I draw the fingers of the mortise on the wood. I also marked those which are cut out.

    After this I cut the angle, then I glued all together.

    But if you seriously think about plans, you shouldn't try it. There is too much to keep in mind and the risk to destroy, wood which cost around 200€ for this cabinet is immense.


    5 years ago

    MDF is a superior "wood" for speakers. It's not a ply or a chip. Just really densely packed wood fibers. It insulates sound far better than any wood.

    1 reply

    Reply 5 years ago on Introduction

    Not really, because these are guitar speakers. MDF is good for bass. But for guitar ply wood is the best, because it reflects the sound in one direction! MDF is absorbing sound. If you take a good HiFi speaker, you can see, that middle and high tones are inside seperated rooms from a different material than the bass speaker. Middle ton and high ton speaker are also sometimes put into steel, bass speaker never!!!

    Ply wood is expensive, because it is made of several layers of wood, not made from chips.


    5 years ago on Introduction

    Nice, what kind of amp are you driving this with? Any interior baffles needed to help with the sound or you just need it good and loud?

    1 reply

    Reply 5 years ago on Introduction

    I use it with a tube guitar amp. And it sounds pretty good. It is for playing e- guitar and so it needs nothing more inside, because there are no low frequencies.