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the midrange, giving the amplifier more of a hi-fi response. Experiment with both, as great sounds rest in each. With the toggle
switch in the UP position, ROCK is on. In the DOWN position, JAZZ is on.
TREBLE
adjusts the high frequency response for both clean and overdrive modes. At near-maximum settings, you may also
notice an increase in gain.
MIDRANGE
adjusts the mid frequency response for both clean and overdrive modes.
BASS
adjusts low frequencies in your amplifier for both clean and overdrive modes.
LEVEL (OVERDRIVE)
adjusts the amount of gain, and in turn distortion in the overdrive mode.
RATIO (OVERDRIVE)
serves a sort of volume control for the overdrive channel. However, just like this version of the original
amplifier, there are not individual master volume controls for the clean and overdrive channels. Instead, the RATIO control
serves to balance out the volume of the overdrive channel with the clean channel.
MASTER (POWER AMP)
sets the overall volume of your amplifier.
PRESENCE (POWER AMP)
adjusts the high frequency response of the power amplifier using negative feedback. Use this
control to add sparkle and clarity to your tone.
INDICATOR
will illuminate when the OTS is powered by turning the rear panel MAINS toggle switch to the ON position. If
INDICATOR does not turn on, check your power cable connections, and then the 2A slow-blow fuse on the rear of the unit.
