3. GAIN CONTROL.
The gain control adjusts the gain. High levels of gain will heavily overdrive the pre-amp and may
sometimes be uncontrollable, especially when used at high volume levels!
4. BASS CONTROL
The Bass control adjusts the level of bass before the pre-amp stages.
5. MIDDLE CONTROL
The Middle control adjusts the level of midrange before the pre-amp stages.
6. TREBLE CONTROL
The Treble control adjusts the level of treble before the pre-amp stages.
6. HF DRIVE CONTROL
The HF Drive control does two things. It filters the high frequencies when turned anti clockwise,
but also boosts the presence of the output stage when turned clockwise into the white area.
This boost will be much more apparent at high volume levels.
7. VOLUME CONTROL (FOOTSWITCHABLE)
The volume control adjusts the output volume. This control can be completely defeated via a
latching footswitch. High levels of volume will heavily overdrive the output stage.
8. POWER SWITCH
The Power switch is used to power up the amplifier.