
6
US Modern Valve
GAIN Knob – Sets the amount of harmonic distortion.
PRESENCE Knob – Gives the signal more strength.
BASS Knob – Defines the amount of low frequency.
MID Knob – Defines the amount of mid frequency.
HIGH Knob – Defines the amount of high frequency (brightness).
MASTER Knob – Sets the level.
V-AC
BASS Knob – Defines the amount of low frequency.
TREBLE Knob – Defines the amount of high frequency (brightness).
TOP CUT Knob – Filters out the high frequency by acting as a low-pass filter. Rotate clockwise to reduce the cut-off frequency and so
increase the amount of high frequency that is removed.
MASTER VOLUME Knob – Sets the level.