User manual
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(1) INPUT socket
is is to connect the 1/4” jack lead from your instrument. Alternatively, if any eect units are being used
before the amplier then the output from the last unit is connected here.
Experience has shown us that not all 1/4” jack plugs are made equal, therefore, we recommend the use of only
high quality 1/4” jack leads for best sonic performance and reliable connection.
(2) GAIN rotary control
is is to set the gain of the input stage of the amplier. e setting of this control is the single most important
on the whole unit. ere are three regions of operation of the control, which can be visually conrmed by the
activity of the signal LED.
(3) SIGNAL LED
When the LED is green, the instrument signal is passing through the preamp without any compression. When
the LED begins to ash red, more and more compression is occuring in the preamp as the GAIN control is
advanced. e compressor also tracks changes made to the EQ; therefore, an increase in an EQ setting will
require a decrease in the GAIN setting to maintain the same amount of compression.
When the GAIN control is at maximum clockwise rotation, a musically useful overdrive distortion
circuit is engaged. Reduce the VOLUME accordingly when using this setting.
(4) BASS, MID, and TREBLE EQ
is section is an active tone control. Adjusting these knobs clockwise from the center (0) position will amplify
the low, mid, or high frequency content. Adjusting counterclockwise from the center (0) position will attenuate
the low, mid, or high frequency content.
(5) Power Indicator
Green LED that indicates the amp is powered on.
(6) VOLUME rotary control
This sets the signal level sent to the power output stage and the Speaker Output. It should be set at “0” when
switching on the amplier and turned up to the desired playing volume slowly to avoid any sudden level
changes that could damage your hearing. When maximum power is detected, a limiter circuit is engaged,
preventing excessive power amplier clipping.
(7) Headphone Jack
This 1/4” stereo jack is for player monitoring. For silent practice, simply disconnect the speaker output and
listen through the headphones.