★ Modified for a more vibrant and rich sound compared to the original. Based on the MOD by K company, with additional original MODs incorporated. The sound is truly thick and has a powerful presence, responding faithfully to subtle picking nuances. A wide range of tones are possible, from clean to crunch, depending on the guitar's volume. The noiseless and wider-ranging gain knob allows for high-gain sounds with sustained notes. Rectifier diodes have been added to the clipping section, and most ceramic capacitors have been replaced with silver mica. This results in a more noiseless and fat sound. ■■9V-17V Boost Circuit■■ By switching the switch added to the left side of the unit, the 9V battery or 9V adapter is boosted to 17V inside the effector. By incorporating a new boost board inside the unit, a high dynamic range is achieved, ensuring sufficient headroom that is resistant to distortion. The sound range expands greatly, increasing sound pressure, body, and vibrancy. *Also becomes more resistant to howling. You can switch between 9V (down) and 17V (up) with the switch. ★ The 3-WAY switch added to the far right of the unit allows you to switch between center (normal), up (same as K company) for FAT, and down for an even thicker FAT mode. It's a tube drive sound with a resonance effect. ★ The second switch from the right allows for further GAIN increase. A thick distortion with a strong body is added. ★ An ultra-high-brightness BLUE (blue) LED is used for the ON & OFF check lamp. Both 9V batteries and AC adapters are supported. ※ May end early as it is also listed on other sites. Type... Electric Guitar Manufacturer... BOSS #MOD #keeley