Used and a bit dirty but works great! Comes with only the item listed in pictures. The most flexible amplifier in the Ultra line-up can grow with your system. From running a Front system and sub, it can progress to front system bridged or all the way to full Active mode for a 2 way front speaker system. The inbuilt crossovers make changing your system layout a breeze. Summed Mono preouts allow easy connection of a sub amp as your system grows. Sub remote capable for Subwoofer control. High Level input for interfacing with your Factory Stereo. Specification 4 x 150W at 2 ohms / 4 x 100W at 4 ohms / 2 x 300W Bridged Technologies Smart Switching – Automatically routes the signal Parametric EQ (P Sub/ P5) – Gives full adjustment of the subwoofer sound Thermal bias tracking – Eliminates distortion Flexi-mount system – For easy installation Vari-speed Thermal management – Quietly keeps everything cool DC Sub level control – Eliminates noise pickup Features Power Levels [2 Ohms] – 1 x 150W Power Levels [4 Ohms] – 1 x 100W Bridge – 2 x 300W THD – < 0.1% Signal to Noise Ratio – 100dB 'A' Wtd Input Sensitivity [Volts RMS] – 0.3 ~ 4 Volts Current Draw @ 4 Ohms – 45 Amps Fuse Rating – 40 Amp Crossovers HP [All Continuous] - CH 1 & 2 – 30 – 6000 Hz Crossovers HP [All Continuous] - CH 3 & 4 – 20 – 200 Hz Crossovers LP [/- Module] - CH 3 & 4 – 60 - 6000 HZ Dimensions H x W x D [mm] – 38 x 450 x 217 Weight [Kg] – 3.0