G. TREBLE - Adjusts the overall brightness of the amplifier.
H. BASS - Adjusts the low frequencies of the amplifier.
I. MID - Adjusts the midrange frequencies of the amplifier.
J. MASTER- Controls the loudness of the DRIVE channel ONLY.
K. REVERB- (Combo only) Controls the strength of the Reverb (both channels). This effect may be selected
on or off via the footswitch.
L. PILOT JEWEL - Illuminated when the Prosonic is receiving power. If the lamp burns out, unplug the
amplifier, unscrew the green jewel and replace the lamp with a type T47 light bulb.
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