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FS.. GR Research Rythmik audio Sub kit Twin 12 sealed

This was the Gr Research twin 12 woofers in the same cabinet or separate 1.3 to 1.5 CF cabs per woofer.. The amp is a A370 PEQ servo

I tested this in a test box and it pounds as you get twice the efficiency from two drivers.. This twin 12 bested the single rythmik 15

I am asking $375 plus shipping for the whole kit. All you will need is to build a box and you have sub 20 hz !