Quinnamp SDQ1b Owner's Manual - page 4
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MASTER- This is the Master Volume control for the amplifier. Once you have set the volume balance
between the CLEAN CHANNEL and the OVERDRIVE CHANNEL this control then is used to raise or
attenuate your amps volume without affecting gain staging and balance of channels.
PRESENCE- This control sets the overall presence of the power amp section of your SDO. This control
works by feeding back frequencies to the power amp, reducing low end response, and adding emphasis
to mid and high end frequencies. Acts somewhat like a tone control for the power amp. Useful to tune
the overall brightness and response of the amp.
SDQ1b Rear Panel:
IEC Module:
4