http://billfitzmaurice.info/forum/viewt ... 13&t=12632 If anyone could tell me what to plug into the calculator that would be awesome. Once I have the bom for the crossover I can order the parts and solder it all together. I wanted to make the smaller TLAH just because I had the material on hand and was looking for a weekend project. I will be building a 9/12 version eventually too. I think I might be giving these to my dad when I get them finished. If I need to add another tweeter to make the calculations easier I can but adding more mids would be tricky at this point. I know some of you are going to tell me to read the directions again and I have read them many many times but I am still a little lost. Here is what I have so far. Also, when I build the 9/12 version can I make it as tall as I want as long as I use the same end sizes?
The pics are too big for posting within the thread so I will link them. Let me know if they don't work.
I did the first two holes to see how the drivers would fit and since I had dry laid them out on before cutting I knew they would but I wanted to double check since the first would be a template for the next.
You can see how I laid it all out ahead of time to get a better idea where all the speakers would line up.
This is the template I made. I was scratching my noodle pretty good trying to figure out the best way to get the exact dimensions off the back of the speaker and then I had a Eureka moment
I decided to use some painters tape and slowly tape around the entire back side of the speaker. Once I peeled it off I had a perfect oval to trace. I still have it and can take some pictures of it. Once that was made I simply stuck the painters tape to a piece of 3/4" mdf and traced the hole. After that I broke out the jig saw and a template was born.
I aligned the template up and predrilled holes so that I could screw it in securely for when I was going to route it. I starred one corner so I could remember what direction it would go.
This is the bit I used with my old school craftsman router. I attached the template to the underside and since the bit is 1" long I had no problem going through all 3/4" mdf at once. All I had to do was drill a hole big enough to get the bit down there and then I just followed the template.
Here she is all cut up. For the tweeter holes is used a 1 1/8" forstner bit. I thought I was going to have lots of trouble but the 20v portable drill with a fresh bit ate through the mdf like butter.
And here it is waiting for glue to dry. Before I glued it up I used it as a template to make the second one. Once you have one made it is SUPER easy to make the next one. Just screw them together and use your first speaker as a giant jig. I did not worry about screw holes as I plan to fill them all in with PL and sand them.
