Expand Your Tonal PaletteThe Treble Bass Expander (TBX) is a stacked and detented 250K/1Meg potentiometer that expands your tonal palette. It functions as a standard tone control from 1 to 5 after which it decreases resistance sending more bass treble presence and output to your amp. Mounting hardware and installation instructions included.Features250K/1Meg potentiometerStacked and detented designNo battery necessaryWhite tone control knob included.022mf capacitor and 1/4-watt resistor includedMounting hardware and installation instructions included