SE2 features a pre-wired balance control and master volume and treble on separate potentiometers with the bass on SMT PCB. Each control pots are designed to connect to PCB by a connector, which make SE2 installation easier and versatile. Additional wiring you may need for SE2 installation is just Pickup, Output Jack, Ground and Battery cable. High Impedance Input design can match with any Active or Passive Pickup and also Low Impedance Output will keep the same tone from your guitar to any PA system without losing high frequency response. Using advanced Surface Mounted Techniques could reduce unwanted sound (Noise) while increasing sound quality and it's reliability. ARTEC guarantees a virtually noiseless sound with long 9V battery life.