Boss Katana-500 Bass Head, Transistor Head for Electric Bass, Class D power amplifier, Channels: 1, Power 500 W Peak, More than 60 effects as well as dedicated Comp, Drive, FX and Blend controls, Cab resonance function calibrates the sound for optimum adaptation to each cabinet, Vintage and modern amp feel options, 4-Band EQ, Plus low and high-pass filters, Shape selector switch (Mid Scoop, Bright and Extended Range), Save and recall panel settings with integrated memory function, Switchable and programmable line-out sounds, Optional GA-FC foot controller, Art. no. #431181# and Bluetooth Audio MIDI Dual Adapter (Art. no. #522827#) both not included., Controls: Master volume, gain, comp, drive, blend, FX, bass, low mid, high mid, treble, Switches: Memory, Mute, Hi Cut, Bottom, Pad, Shape, Amp Feel (vintage/flat/modern), Comp, Drive, Blend, FX, Tap, Low Mid, High Mid, Line Out, Line Out (Custom/Rec/Blend/Live), Gnd lift (Off/On), Select (Post/Pre/Direct), Calibration, Dimensions (W x D x H): 380 x 350 x 180 mm, Weight: 4.03 kg@+*Connections:*, Input: 6.3 mm jack, GA-FC/CTL: 6.3 mm stereo jack, Expression pedal: 6.3 mm stereo jack, Phones/rec output: 6.3 mm stereo jack, Line out: XLR, USB connection for editing software and DAW recordings, Speaker outputs: 2 x Speaker Twist @ min, 4 ohms