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Low Earth Orbit
DIY Audio
60 Degree DIY Mid Hi - AKA PM60
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<blockquote data-quote="Peter Morris" data-source="post: 140743" data-attributes="member: 652"><p>Re: 60 Degree DIY Mid Hi</p><p></p><p></p><p></p><p>I used the 60 degree plans with the following changes.</p><p></p><p>- I didn't use the 10mm spacer to mount the 12" drivers</p><p>- the front baffle is set back 30mm instead of 15mm. My plan was to cut 15mm of the box so the it would be 440 deep instead of 455, but I think I will leave it. </p><p>- I have cut the back corners of the box to make it look smaller and less DIY - its a lot of work - FWIW I built the box square and then cut the corners off. I cut them at 40 degrees; that's all my saw would accommodate.</p><p>- I rounded the first bend of the horn a bit more, but I don't think it matters. See my pictures on this thread.</p><p></p><p>The box is 385mm x 455mm x 930mm - the 90 degree box was 385 x 430 x 930. The extra 25mm was to accommodate the deeper 60 degree horn. I saved 10mm by eliminating the space and reduce to clearance behind the compression driver by 5mm (10 + 5 = 15mm) hence the front baffle was moved back an additional 15mm.</p></blockquote><p></p>
[QUOTE="Peter Morris, post: 140743, member: 652"] Re: 60 Degree DIY Mid Hi I used the 60 degree plans with the following changes. - I didn't use the 10mm spacer to mount the 12" drivers - the front baffle is set back 30mm instead of 15mm. My plan was to cut 15mm of the box so the it would be 440 deep instead of 455, but I think I will leave it. - I have cut the back corners of the box to make it look smaller and less DIY - its a lot of work - FWIW I built the box square and then cut the corners off. I cut them at 40 degrees; that's all my saw would accommodate. - I rounded the first bend of the horn a bit more, but I don't think it matters. See my pictures on this thread. The box is 385mm x 455mm x 930mm - the 90 degree box was 385 x 430 x 930. The extra 25mm was to accommodate the deeper 60 degree horn. I saved 10mm by eliminating the space and reduce to clearance behind the compression driver by 5mm (10 + 5 = 15mm) hence the front baffle was moved back an additional 15mm. [/QUOTE]
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60 Degree DIY Mid Hi - AKA PM60
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