Ground Zero GZIA 4.120 4-channel high quality class A/B amplifier B4000 and Subsonic frequency adjusters

and Subsonic frequency adjusters

3-way component speaker system

THIS DOES NOT WORK ON PCM CONTROLLED 05+ GM TRUCKS OR VEHICLES WITH THE 2 pin square plug

Open Cell Foam   Temperature Resistance   -300°F to 350°F (intermittent to 400°F+)   Color   Smoke White   Thermal Insulation Rating (R-Value)   4

Ground Zero GZIA 4.120 4-channel high quality class A/B amplifier B4000 and Subsonic frequency adjustersHigh Quality amplifier 4 channel amplifier with class A B circuit, integrated active crossover and black anodized heatsink 4 channel amplifier Class AB technology Variable active crossover and bass boost Stable power supply Large terminals Black anodized heatsink with Ground Zero lettering High level input with auto on function Model High Quality Class A B amplifier Channels 4 Output Power (@ 4) 4x 70 Watts RMS Output Power (@ 2) 4x 120 Watts RMS max.