Glossy Booster Plus - This is a clone model of the exotic EP. It was rarely used in live performances. Copied and pasted below: Made with reference to the circuit diagram of XOTIC's EP Booster. A famous booster that makes the sound glossy and thick just by passing through it. A switch was brought out internally (as the volume also increases when the gain is increased), and a VOL was also added for easier use. BASS off/BRIGHT on is equivalent to a flat EQ. Current consumption is approximately 5mA. ★ When 9V is input, it can be boosted internally to operate at 18V. Please switch the 18V switch after turning the effect off. Although noise may occur with the AC adapter in the original, this does not. (Please use a stable, manufacturer-made 9V adapter. Inputting 11V or more will cause a malfunction. Battery cannot be built-in) ★ About the improved FAT switch The original affects a fairly low frequency range, so the effect is not very noticeable unless you have a large volume and large speakers. Therefore, it has been improved so that the effect can be clearly felt even with a mini amp.