Making A Speaker Out Of Wood

Hi folks, Kevin Inkster again. In this video I want to show you how to make this smart little plywood amplifier for any smartphone or ipod or anything like that. It simply fits into the slot into the top like so and the sound is directed out through the front and you’ll be surprised how effective this is. So here you can see how I am going to construct this speaker; I’ve got six layers of Marine Ply. I choose to use marine ply because there is no voids in it and it works really nicely.

I put a slot in the top where the iphone fits like so, below it in the position where the speaker is on the iphone or whichever type of smartphone you have. You may have two speakers in which case you might want two holes. And the next two layers, I’ve made the hole right the way through. The bottom three layers; there is no holes at all, I will just sculpt that, sculpt the speaker shape in it. So glue it together in two sections; the bottom section and the top section with the holes for the speakers. So these three will make up the top section and you can see when I put them together the hole in the other side.

Now I have the two sections glued together. This is the top section, you can see the slot, the hole on the bottom there and I’ve used the paper template just to mark out the shape of the speaker, the internal of the speaker that I am about to shape. So now I’m just going to get the Turbo played and I am going to sculpt that out.

Beauty with plywood is as I sculpt I will be able to see the contours and will be able to do quite uniformly by just looking at the contours as I progress down into it.


you may need to bring the two sides together and just check for alignment. You may need to just adjust it slightly. First I’ll use the sand from the mini-turbo because it’s very good for rapid fine shaping and then I will use the contour sand for doing my fine finish using the random sanding action.

I’ve finished sculpting and sanding the insides of the speaker. You can see that… you can check your symmetry as you’re going because a contour reveals themselves as I go so it’s quite easy to do that. One other little trick to it is it’s very difficult to get a exactly matching top and bottom, so what I do is I round the edges so there is not a defined edge as they come together. And so here is the top and here is the bottom, they come together like so and you can see down inside there.

Now I’ll glue … I will actually oil the inside of this first and wipe that and I will glue it together and I’ll just round the edges, etc. and finish it off.

So, most of the work is one now. The two halves are glued together, the inside just looks awesome down inside there and all I have to do now is clean up the sides and I might just round these edges so you can see the grain going around the edges and oil that up and it will be finished.

That’s the all the sanding done really, I’ve just rounded all of the edges and it has rather gone to a square shape. I could if I wanted to sculpt the whole outside and get a lot of these nice lines but I think the square shape looks nice and modern, so I might just stay with it for now.

Now it’s just remains for me to put a coating on it. I like to oil it, goes on very easily. If it stains we can sand it and do it again so I am just using the standard furniture oil. So I’ll just put that on and that should be it, complete.