• Edge’s SL1789 is a compact powered 8”X9” subwoofer that delivers surprising low frequency impact in a tough, all-aluminum frame.
• Edge innovates once again, with built-in passive radiator. 
• The included remote control allows you to change the amount of bass without changing the radio volume, for the perfect mixture of bass in your music at any volume.
• SL1789 comes with an adjustable low-pass crossover, variable bass boost, phase switch, and two auto turn-on options: DC-offset or signal sensing.
• The quick-connect plug and harness includes power, signal and remote turn-on. It also features high and low level inputs for integration with nearly and factory or aftermarket head unit, plus two automatic turn-on options for incredibly easy 
• This compact power subwoofer is ideal for easily adding aftermarket bass to any vehicle without taking up a lot of space.