Jl Audio 0101354200 Amplifier Stacking Hardware Kit, Hd Stack Kit, Fits Hd Or Mhd Amplifier - 010-13542-00 - 326-0101354200F1
This hardware kit allows you to stack one HD or MHD amplifier onto another. By using multiple kits, it is possible to stack multiple HD and MHD amps. The kit includes four specifically engineered mating bolts, and four threaded, alloy stacking caps.