That was me with the first Stetsom amps to hit North America, 4x7kd's on 12v I used two DD 9915z's Point of interest those amps had no modifications and factory fuses still in tact, four and a half year old amps, I changed them out to the 14k2d's and with 2x14k2d am doing the same numbers. I now have four of them in there........More to come!