Ron Tafoya I contacted Derrick he said his boxes are 8 inches. For this type of boat from what I understand about 6 to 8 inches would work great. I contacted shockwave about height and they said this: That riser height would put you at 20" from the deck without a seat (S5 is 8" high). Your seat may add about 4" depends on your seat. You would have to do the math depending on your boats helm set-up and where you want to be sitting for the best sight line.
@@Mrscottyboy4 Thanks for the info. Im looking to instal on a 2004 Hewescraft sportsman 180. My boxes are 6'' tall. My seat right now sits , from floor to top of cushion, 17"
