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<blockquote data-quote="PSturmer" data-source="post: 3571071" data-attributes="member: 568966">two identical box&#039;s were made. one out of mdf, and the other birch. the specs on them are 1.25 cubic feet net with .75&#039;&#039; wood thickness. each had a 12&#039;&#039; type R. both box&#039;s were sanded in the interior walls with the same grit sand paper. both speakers were brand new. voltage was held constant on battery.mdf:1100 watts: 139.82800 watts: 143.7birch1100 watts: 139.82800 watts: 143.7both had the same output. this may change when larger box&#039;s are used, but when small box&#039;s are used one does not have the benefit over the other in terms of spl.here is the birch box<img src="http://i24.photobucket.com/albums/c8/psturmer/birchboxtester.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />and here is the equipment. i am still in the process of making the bus bars for the my car so thats why the amps are not in there.<img src="http://i24.photobucket.com/albums/c8/psturmer/test4.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

[QUOTE="PSturmer, post: 3571071, member: 568966"] two identical box's were made. one out of mdf, and the other birch. the specs on them are 1.25 cubic feet net with .75 '' wood thickness. each had a 12'' type R. both box's were sanded in the interior walls with the same grit sand paper. both speakers were brand new. voltage was held constant on battery. mdf: 1100 watts: 139.8 2800 watts: 143.7 birch 1100 watts: 139.8 2800 watts: 143.7 both had the same output. this may change when larger box's are used, but when small box's are used one does not have the benefit over the other in terms of spl. here is the birch box [IMG]http://i24.photobucket.com/albums/c8/psturmer/birchboxtester.jpg[/IMG] and here is the equipment. i am still in the process of making the bus bars for the my car so thats why the amps are not in there. [IMG]http://i24.photobucket.com/albums/c8/psturmer/test4.jpg[/IMG] [/QUOTE]

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