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SM9Pro+ Super Metal
FEATURES AND CONTROLS
●SM9Pro+ was developed based on the distortion core of Maxon SM9 (Super Metal 9). Original
SM9 was sold just after NWOBHM which created a big boom in the late 1970s.
●SM9Pro+ creates scooped heavy metal tones with high-level gain circuitry and cut midrange
circuitry. Wide range of setting from NWOBHM to current heavy rock / loud rock using drop D
tuning is available with simple four control knobs.
●Operating voltage (9V or 18V mode) is switchable via an internal slide switch accessible
through the unit's battery compartment. In new power-saving circuitry for SM9Pro+, DC to DC
converter only operates at 18V mode. When 9V mode is selected, DC to DC converter does
not operate, and SM9Pro+ operates with battery or AC adaptor directly. There is no power
consumption for DC to DC converter, which makes battery life last longer.
①IN (input jack)
Input jack to connect to the output of guitar, other effects or re-
lated equipment. The product automatically turns on when a
plug is inserted into this jack without external power supply (AC
adaptor) operation. When not in use, disconnect plug from in-
put jack to preserve battery life.
②OUT (output jack)
Output jack to connect to input of amplifier or other effects.
③GAIN
Controls gain level. Turn it CW for more gain.
④SCOOP
Controls cut midrange frequency. When turning it CW, the
frequency range of scoop moves to high range. When turning it
CCW, frequency range of scoop moves to low range.
⑤LEVEL
This controls output level of distortion signal. Typically output
level in effect/bypass should be adjusted to equal level.
⑥EDGE
Controls treble range. Turn it CW to accentuate treble range.
Turn it CCW to suppress treble range.
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