Constructed from 18mm of 13 ply solid marine birch, and loaded with 4x12" Celesion G12 100 K speakers rated at 400-watts at 8 ohm nominal impedance mono or 2 x 200-watts stereo at 16 ohms. For wider projection when used in stereo mode, the PPC412HP-8 speakers are split diagonally, an industry first. Two skids on the botton of the PPC412HP-8 cabinet ensure improved acoustic coupling of the enclosure to the stage for extended and tighter low end. Designed for use with the Orange TV200H Thunderverb 200 all valve head amplifier.