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Low Earth Orbit
DIY Audio
PMA - 60; New arrayable double 12 and horn.
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<blockquote data-quote="Peter Morris" data-source="post: 214870" data-attributes="member: 652"><p>Hi Chris,</p><p></p><p>This started out as building a 60 double 10", but I figured I could get 2 x 12" in the same size box, which should help with their ability to array (in practice its more than just the centre to centre distance of the drivers that matters). Anyway the problem is getting the side angles steep enough, the correct box volume and then getting the horn & driver in the box without making the box too wide and spacing the drivers too far apart, compromising their ability to array .... and then ... ... getting the vertical spacing of the drivers (and crossover frequency) in the MTM configuration such that the vertical directivity is still OK.</p><p></p><p>Its all a juggling act ... the smaller 4594HE should help in this respect but I did not have 4 spare 4594HE's at the time.</p></blockquote><p></p>
[QUOTE="Peter Morris, post: 214870, member: 652"] Hi Chris, This started out as building a 60 double 10", but I figured I could get 2 x 12" in the same size box, which should help with their ability to array (in practice its more than just the centre to centre distance of the drivers that matters). Anyway the problem is getting the side angles steep enough, the correct box volume and then getting the horn & driver in the box without making the box too wide and spacing the drivers too far apart, compromising their ability to array .... and then ... ... getting the vertical spacing of the drivers (and crossover frequency) in the MTM configuration such that the vertical directivity is still OK. Its all a juggling act ... the smaller 4594HE should help in this respect but I did not have 4 spare 4594HE's at the time. [/QUOTE]
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PMA - 60; New arrayable double 12 and horn.
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