SoundQubed Q1-1200.2 1200W Mono Block Amplifier SQ series amplifiers are fully stable down to one ohm. Remote Gain Knob Included. Daisy Chain connection of two amplifiers stable down to 2 ohms Four way protection circuits: Speaker shorts, DC offset, High/Low voltage, Thermal protection Double sided boards with high current MOSFET switching devices 24db/oct slope crossovers, Fully adjustable Low Pass Filter and Subsonic Filter Allen Wrenches Gain Knob Amplifier SQ AK Amplifier Install Kit Woofer (in a box) Panel Poppers Wire crimper/cutters Wrench or Ratchet with sockets (for your battery terminal