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Double 10 and Horn
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<blockquote data-quote="Peter Morris" data-source="post: 213407" data-attributes="member: 652"><p>I would suggest the RCF ND950 or a B&C DE1090TN with the HF950 ... doing that you can use a crossover frequency around 650 to 700Hz.</p><p></p><p>I think there are many 10's that will work very well including the 10FH520 or B&C 10MBX64, 10NW76, Beyma 10MC700ND, Eighteen Sound 10NW650, 10NW750, RCF MB10N305 ... you would just need to adjust the box volume and tuning.</p><p></p><p>My first version of the double 10 used an RCF ND850 with an EV HP94 horn. It worked well, but their were directivity and phase cancellation issues caused by having a crossover frequency around 1200Hz .... the latest version crosses at 650Hz .... and its soooo much better.</p><p></p><p>BTW RCF has just released a double 10 - the TT4a and its using a 4" diaphragm HF driver and a 3" VC 10"</p><p></p><p>Mikesound's design looks good, but to get that MTM idea to work well you will need a cross over frequency around 650 - 700Hz (as a guess)<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> ... This is what I would do (or similar) if I was designing the box in 2020.</p></blockquote><p></p>
[QUOTE="Peter Morris, post: 213407, member: 652"] I would suggest the RCF ND950 or a B&C DE1090TN with the HF950 ... doing that you can use a crossover frequency around 650 to 700Hz. I think there are many 10's that will work very well including the 10FH520 or B&C 10MBX64, 10NW76, Beyma 10MC700ND, Eighteen Sound 10NW650, 10NW750, RCF MB10N305 ... you would just need to adjust the box volume and tuning. My first version of the double 10 used an RCF ND850 with an EV HP94 horn. It worked well, but their were directivity and phase cancellation issues caused by having a crossover frequency around 1200Hz .... the latest version crosses at 650Hz .... and its soooo much better. BTW RCF has just released a double 10 - the TT4a and its using a 4" diaphragm HF driver and a 3" VC 10" Mikesound's design looks good, but to get that MTM idea to work well you will need a cross over frequency around 650 - 700Hz (as a guess):) ... This is what I would do (or similar) if I was designing the box in 2020. [/QUOTE]
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