Product Description ● This effector is based on the TSV808 and has been modified, with the internal switch for diode clipping and BASS made easily accessible. ● The upper toggle switch selects the diode configuration: down is symmetrical (2 silicon diodes), up is asymmetrical (3 diodes), and middle is symmetrical (4 diodes). ● The op-amp is socketed, allowing for easy replacement. The installed op-amp is JRC4558DD. ● Hand-wired construction on a universal circuit board. ● 9V battery operation is OK. ● Please use a 9V center-negative adapter for power. It can withstand up to 18V. ● True bypass. ● Features a 5mm high-intensity blue LED. ● The aluminum case size is 60 x 112 x 31 (height) mm. ● EBK is a name used only for auctions. The main business focuses on blues-related amplifiers, effectors, and other equipment, including adjustments, production, and guitar setups. Production exceeds 4000 units (as of August 6, 2024), and many professional musicians use these products. ● Six-month warranty: We manage customer records, and if a failure occurs under normal use, we will compare it with the shipping records and repair it free of charge within six months. (However, you will be responsible for shipping costs.) ※ Returns are not accepted except for initial operational defects. ※ This product is made as a reference, and we do not use the exact same parts. Therefore, if you want the exact same sound, we recommend purchasing the original unit.