Crunch's redesigned Ground Pounder amps feature a heat sink design with a large illuminated logo, improved low-noise active crossovers, dual-core power supplies and rock-solid output devices. The Ground Pounder series amplifiers are available in three configurations to satisfy your entire car audio desires. Crunch Ground Pounders come in two-channel, four-channel, and mono-block designs for earth pounding bass. Clearly, this is Crunch USA's best amp series ever.