The Cesar Diaz Texas Ranger is based on the DALLAS RANGEMASTER treble booster, as used by Clapton in the Bluesbreakers, Rory Gallagher, Brian May and Tony Iommi. This booster adds treble and gain, and Cesar has added a HI/MID/LO switch to choose an EQ setting which the original pedal did not have. All units are now powder coated instead of painted, which is stronger and looks better. Also the inside is coated so it will not corrode. This pedal has "Absolute Bypass." All Diaz Musical Products effect pedals are individually hand-constructed, wired, and tested.