Halfway through the construction! I made them pose for the camera, so we can see what´s inside the speakers. The ports are in the picture just for show, They were delivered just that morning. As you can see, the side of the speaker has gotten it´s extra layer of MDF. The subenclosure for the tweeter is finished, and the hole for the port in the backpanel has been made.

The black sheets are leadbitumen. It looks like roofing material, but it has a peel off glue back. I heated it on this small stove, but later that day I discoverd that simply laying this stuff in the sun worked much better, even when it was only 15ºC outside. I heated it, so it would stick better. And it bonded so well on the MDF, that when I had to remove a sheet, I had to use a chisel and a small layer of MDF simply came off with it!

This is the is inside of the speaker-to-be. On the left you can see it lined with leadbitumen. Visible on the close up are the staples that I used to secure the corners of the sheets of leadbitumen. They aren't necessary, the sheets stick well enough from themselves. They're just there for an extra feel good factor. In the image on the right it has an added layer of pritex. Pritex is the standing wave reducing liner recommended by speakerland for bass reflex boxes. The image on the left is a little small to see what leadbitumen looks like, so when you click on it, you will get a close up.

I forgot to take pictures of the final assembly of the speakers. But that looked just like the other "clamping pictures", so you're not missing much. On these pictures you can see that I've started on the finish. The one on the left has had a run with the round-over bit, and has been sanded. And oh boy, did that need a lot of energy. Next time, I'm buying the best grade of birch ply I can find!! The one I bought, had a real rough finish, that had to be sanded away, it needed six grades of sandpaper. I started with 80 grit, followed by 100, 120, 150, 180 and finally 240. But when the sanding was done, they felt like a baby's butt! I asked everyone that came to see the speakers to feel them. They thought I was mad, but when they did, they just couldn't stop rubbing them.

Here's a close up of the narrowing in the speaker. The one on the left has a small bevel on the cutout in the side and the inside has been sanded. The round-over of the side of the speaker is clearly visible. Click on the image to get a better look on how much needs to be done on the speaker on the right

And here they are, in full glory. The one on the left is ready to be painted, the one on the right isn't. Clearly visible is the nice birch plywood wood structure in the left speaker, that is missing in the speaker on the right, which has to be sanded.