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Weekend Fun - MJ-18M + SD-12k
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<blockquote data-quote="mrogowski" data-source="post: 6102536" data-attributes="member: 569061"><p>Last weekend I made up a modified MJ-18M and we decided to do some power testing using a SounDigital SD-12k. This unit has a single 1 Ohm voice coil and a couple of other mods:</p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The box we placed it in. Not sure what the size or tuning was as it belonged to Murilo. Perhaps he can comment on it:</p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/3.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>First test went fairly well with 1.5kw:</p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/4.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Second test did better with more power:</p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/6.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/7.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Third test was with 11.6kw of power:</p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/8.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/9.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Fourth test didn't produce any more output but the FrankenMJ took quite a bit - almost 16kw(!):</p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/10.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="http://www.mach5audio.com/download/frankenmj/11.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>That's pretty decent power for a single SD-12k amp!</p></blockquote><p></p>
[QUOTE="mrogowski, post: 6102536, member: 569061"] Last weekend I made up a modified MJ-18M and we decided to do some power testing using a SounDigital SD-12k. This unit has a single 1 Ohm voice coil and a couple of other mods: [IMG]http://www.mach5audio.com/download/frankenmj/1.jpg[/IMG] [IMG]http://www.mach5audio.com/download/frankenmj/2.jpg[/IMG] The box we placed it in. Not sure what the size or tuning was as it belonged to Murilo. Perhaps he can comment on it: [IMG]http://www.mach5audio.com/download/frankenmj/3.jpg[/IMG] First test went fairly well with 1.5kw: [IMG]http://www.mach5audio.com/download/frankenmj/4.jpg[/IMG] Second test did better with more power: [IMG]http://www.mach5audio.com/download/frankenmj/6.jpg[/IMG] [IMG]http://www.mach5audio.com/download/frankenmj/7.jpg[/IMG] Third test was with 11.6kw of power: [IMG]http://www.mach5audio.com/download/frankenmj/8.jpg[/IMG] [IMG]http://www.mach5audio.com/download/frankenmj/9.jpg[/IMG] Fourth test didn't produce any more output but the FrankenMJ took quite a bit - almost 16kw(!): [IMG]http://www.mach5audio.com/download/frankenmj/10.jpg[/IMG] [IMG]http://www.mach5audio.com/download/frankenmj/11.jpg[/IMG] That's pretty decent power for a single SD-12k amp! [/QUOTE]
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