Evolution right there! Those things are monsters!RF Punch Z 12" on the left, RF HX2 12" in the middle, and a TRF 12" on the right
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Long story there. RF Tech said to use the pair of these 12s in a 20ft box. Well that wasn't happening so after some $hitty recommendations from another self-proclaimed RF expert we went with the 13ft box. This was in my Bro's Excursion which loes to peak at 30-32hz so after adjusting tuning a lot we got the best #s with it tuned down to 30hz. That's why the port is sticking out the top of the box in that vid. It was interchageable and wasn't originally supposed to be that long. We never got these dialed in perfect but eventually we were doing 151.8s @ 50hz in a 5ft box w/ a pair of 6" ports powered by a pair of RF T4ks.**** 13 ft for 2 12s... even that big i'm surprised it peaked so low, i thought these were more of one note wonders.
es they did. i have pics of my old one here. and yes, they made a 12 team rf.based off the 4hp, but i didn't know there was a 12" since TC never made a 12" production version of the 4hp