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Low Earth Orbit
DIY Audio
60 Degree DIY Mid Hi - AKA PM60
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<blockquote data-quote="Max Warasila" data-source="post: 140907" data-attributes="member: 3845"><p>Re: 60 Degree DIY Mid Hi</p><p></p><p></p><p></p><p>I just did this math a few minutes ago, the box would be slightly smaller than that due to the particular placement of the 12s full diameter. In other words, the back of the box is around 340mm, and then from there it grows to the 315mm needed internally for the 12s and then flares out to the front, somewhere in the range of 542 using 18mm ply.</p><p></p><p>After some more research, it turns out 10 degrees is the most popular angle for trap boxes. Why, I don't quite know, but that would put the box around 500mm in width or around 19" - not too bad for a trap box.</p><p></p><p>However, you are correct, and I was being forgetful of the design criteria you specified in the early beginnings. The thing is, the 60deg box would be more likely than not used ground stacked, while the 90 degree would be more easily used on a stick. For that reason, I think I'm going to build a filler piece for my boxes for when a pair is used L/R - when and if I build enough boxes to justify it.</p><p></p><p>I'm going to work out a lot of details having to do with the design of this box in the next few days, and when I'm done there will be some very important differences between my final product and everyone else's. Most notably, mine may no longer be designed in metric units. You'll see why later - but there's a lot going on in my head right now planning my flavor of box</p><p></p><p>Thanks again.</p></blockquote><p></p>
[QUOTE="Max Warasila, post: 140907, member: 3845"] Re: 60 Degree DIY Mid Hi I just did this math a few minutes ago, the box would be slightly smaller than that due to the particular placement of the 12s full diameter. In other words, the back of the box is around 340mm, and then from there it grows to the 315mm needed internally for the 12s and then flares out to the front, somewhere in the range of 542 using 18mm ply. After some more research, it turns out 10 degrees is the most popular angle for trap boxes. Why, I don't quite know, but that would put the box around 500mm in width or around 19" - not too bad for a trap box. However, you are correct, and I was being forgetful of the design criteria you specified in the early beginnings. The thing is, the 60deg box would be more likely than not used ground stacked, while the 90 degree would be more easily used on a stick. For that reason, I think I'm going to build a filler piece for my boxes for when a pair is used L/R - when and if I build enough boxes to justify it. I'm going to work out a lot of details having to do with the design of this box in the next few days, and when I'm done there will be some very important differences between my final product and everyone else's. Most notably, mine may no longer be designed in metric units. You'll see why later - but there's a lot going on in my head right now planning my flavor of box Thanks again. [/QUOTE]
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60 Degree DIY Mid Hi - AKA PM60
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