Boss Elite BE1600.2 GPS Accessories so you'll need to purchase

so you'll need to purchase them separately

Variable treble boost (HP): 0 to +14 dB bass boost at 12

depending on the countries and models

Kit includes necessary hardware for mounting to your Wet Sounds REV or ICON series tower speakers including various bolts to accommodate the sizing needed

Plug in installation retains factory wiring integrity

Boss Elite BE1600.2 GPS Accessories so you'll need to purchaseFeatures MODEL 1600W High Output 2 Channel Amplifier Up to 600 W X 2 RMS @ 2 ohm Up to 300 W X 2 RMS @ 4 ohm Up to 1200 W X 1 RMS Bridged @ 4 ohm Full Range, Class A B, MOSFET Power Supply High and Low Level Inputs, Fixed High Pass Crossover, Variable Low Pass Crossover, Variable Bass Boost Include Remote Subwoofer Control 5 Years Elite Warranty Dimensions: 12. 8" L x 7" W x 2. 3" H