Ground Zero GZPA 4SQ 4-channel high performance SQ amplifier 6.0L Diesel and power handling as replacement

and power handling as replacement and upgrade for many PA speakers that use a standard 1-3/8″-18 TPI horn

we’ve designed a midrange loudspeaker that gives you everything you need without sacrificing performance

and rugged black aluminum basket

The 170 amp version is best for use in high RPM racing use

Ground Zero GZPA 4SQ 4-channel high performance SQ amplifier 6.0L Diesel and power handling as replacement1400 Watts 4 channel high end amplifier with integrated activ crossover, BIAS adjustment and high quality parts for dedicated music lovers High End 4 channel SQ amplifier MOSFET technology Variable active crossover with bypass function Variable BIAS setting High quality components Solid terminals Efficient heatsink with illuminated Ground Zero lettering Fulfilling High Resolution audio demands Model 4 channel high performance SQ amplifier Channels 4