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Double 10 and Horn
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<blockquote data-quote="Boyd Williamson" data-source="post: 148302" data-attributes="member: 10607"><p>Re: Double 10 and Horn</p><p></p><p></p><p></p><p>Hi Peter, Thanks for the prompt reply <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Yes, I understand all of the above (I've also read the entire thread on your dual 12 Box - very nice!). </p><p></p><p>From what I understand the Radian 951 is good for 500Hz with a -24dB/Oct HPF slope, or 900Hz with a -12dB/Oct HPF slope in a suitable horn, so I'd guesstimate it should work with say, a 3rd order slope for somewhere around 650 - 700Hz. If I can stretch to the BMS coax, I will use it.</p><p></p><p>The RCF 950 is the obvious choice, as you've already tried and tested it, and 90 deg is probably most suitable for my single box per side purposes. I've no intention to deviate from this design any more than I have to, in order to squeeze out just a little more extension. With a suitable port tuning, and decent xmax drivers in 1/2 space, it seems achievable on the face of it.</p><p></p><p>Where I fall down here is the lack of modelling software, and proficiency in its use (suggestions welcome). The B&C 10NW64 or Faital Pro 10FH520 seem to me like possible contenders? I'm figuring that 60Hz is probably sufficient, so 1/2 an octave. I really don't mind if the sub 100Hz response is at a reduced level, and relies on 1/2 space loading and a bit of bass boost EQ to get there. For the cabs on sticks / speeches / BG music scenario the additional extension probably isn't necessary, so I doubt the loss of boundary reinforcement would be an issue. </p><p></p><p>I'm not quite sure what kind of alignment or speaker parameters such as Qts would best help me achieve my goal. I do have a measurement mic, and can figure out some DSP settings OK (though I'm sure nothing like what you can do with a Lake DSP!).</p></blockquote><p></p>
[QUOTE="Boyd Williamson, post: 148302, member: 10607"] Re: Double 10 and Horn Hi Peter, Thanks for the prompt reply :) Yes, I understand all of the above (I've also read the entire thread on your dual 12 Box - very nice!). From what I understand the Radian 951 is good for 500Hz with a -24dB/Oct HPF slope, or 900Hz with a -12dB/Oct HPF slope in a suitable horn, so I'd guesstimate it should work with say, a 3rd order slope for somewhere around 650 - 700Hz. If I can stretch to the BMS coax, I will use it. The RCF 950 is the obvious choice, as you've already tried and tested it, and 90 deg is probably most suitable for my single box per side purposes. I've no intention to deviate from this design any more than I have to, in order to squeeze out just a little more extension. With a suitable port tuning, and decent xmax drivers in 1/2 space, it seems achievable on the face of it. Where I fall down here is the lack of modelling software, and proficiency in its use (suggestions welcome). The B&C 10NW64 or Faital Pro 10FH520 seem to me like possible contenders? I'm figuring that 60Hz is probably sufficient, so 1/2 an octave. I really don't mind if the sub 100Hz response is at a reduced level, and relies on 1/2 space loading and a bit of bass boost EQ to get there. For the cabs on sticks / speeches / BG music scenario the additional extension probably isn't necessary, so I doubt the loss of boundary reinforcement would be an issue. I'm not quite sure what kind of alignment or speaker parameters such as Qts would best help me achieve my goal. I do have a measurement mic, and can figure out some DSP settings OK (though I'm sure nothing like what you can do with a Lake DSP!). [/QUOTE]
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