When set to the LO position, the reverb sound darker and is less prominent, while in the HI position the function is brighter. This control adjusts the reverberation effect for all channels. Allow the amplifier to warm up for 2 minutes before depressing this switch. Always use the fuse with a correct current rating. George Dennis will install fuses with a correct rating corresponding to the voltage of the country to which a unit is being shipped.
Current rating remains the same for all countries.
Use only correct fuse type and rating. Switch to LO and HI in the effect loop. When loop not engaged, switching to LO offers yet another tone option. Please note the volume drop. Effect loop SEND - connection to the output of the effect pedal.