Front Panel Functions - Two-Rock Bi-Onyx Owner's Manual

Front Panel Functions

INPUT - High impedance input to the amplifier. Plug in your instrument here.
TREBLE (Clean & Lead) - Adjusts the high frequency response. At lower settings of this control
the tone will be warmer and smoother. As you turn this control up the highs become more
prominent and aggressive adding gain to the signal as well. This control is very interactive with the
Bright switch, Middle control, and Deep switch. In the full counter-clockwise position, high
frequencies are bypassed to ground. In the full clockwise position, high frequencies are allowed to
pass to the next gain stage.
MIDDLE (Clean & Lead) - Adjusts the midrange response. At low settings of this control the tone
will be "scooped" of midrange response, emphasizing the highs and lows. As this control is turned
up, the midrange frequencies are increased. This creates the "body" of your guitar's tone and is
very critical to both the tonality, feel and overall response of the amplifier. Higher settings of this
control also help your tone to cut through the mix in both a live band situation as well as when
playing the amp outdoors.
In the full clockwise position, mid-range frequencies are allowed to pass to the next gain stage.
BASS (Clean & Lead) - Adjusts the bass response. In the full counter-clockwise position, low
frequencies are cut and the response of the treble and mid-range controls is greatly reduced. As
this control is turned up, the bass frequencies are increased and allowed to pass to the next gain
stage.
GAIN (Clean & Lead) - Adjusts the overall gain of the amplifier. Start with this control in the 12
o'clock position then adjust to taste. This control determines the initial character of your tone, from
cleaner/brighter tones at low settings to fatter/warmer tones at higher settings. As you turn this
control up it also introduces more gain and bass into the signal path, and reduces the amount of
available clean headroom especially when the master volume is set higher.
MASTER (Clean & Lead) - Adjusts the overall output level of the amplifier. At lower settings on
this control the amp will be much cleaner sounding as well as lower in volume. As this control is
turned up the power section of the amp begins to work harder which increases sustain, fullness,
and touch dynamics as well as raising the volume of the amplifier. At higher settings on this control
the power section will be pushed into natural overdrive especially if the Gain control is set higher.
NOTE: The Lead Channel can be activated by pulling out the Lead Master control knob.