Donner Noise Killer User manual

The Noise Killer is a super easy-to-use
smart noise gate pedal with two noise
reduction modes. The fast noise
detection and smooth attack/release
keeps everything quiet without affecting
the notes you played.
Introduction
Overview
Owner’s Manual
Precautions
READ CAREFULLY BEFORE
PROCEEDING
Please keep this manual in a convenient
place for future reference.
Power Supply
Always use a DC 9V center negative AC
adapter. Use of an adapter other than
that specified could damage the unit or
cause malfunction and pose a safety
hazard.
Always connect the AC adapter to an
AC outlet that supplies the rated voltage
required by the adapter.
Disconnect the AC adapter from the AC
outlet when during lightning storms or
not using the unit for an extended
period.
Connections
Always turn off the power before
connecting or disconnecting. Make sure
to disconnect all cables and AC adapter
before moving the unit. This will help
prevent malfunction and damages.
Environment Considerations
Avoid using the unit in any of the
following conditions that could cause
malfunction:
●Extremely hot or cold places
●Under direct sunlight
●Magnetic fields
●Near heaters and other heat sources
●Sandy or dusty places
●Places that are extremely humid or
exposed to splashing water
●Places with lots of vibrations
Electrical Interference
Devices that are very susceptible to
interference or that emits powerful
electromagnetic waves (e.g. radios and
TVs) should not be placed near this unit,
as interference could occur.
Electromagnetic interference could
cause malfunction and could corrupt or
destroy data.
Always operate this unit at a suitable
distance from these devices.
Handling
Do not apply excessive force to the
switches and other controls, exposing
the unit to strong impacts, which could
cause it to break.
Do not put foreign objects or liquids into
the unit.
Never open the case or attempt to
modify the product in any way since this
can result in damage to the unit.
Clean only with a soft, dry cloth.
●Sensitive But Smooth
The Noise Killer features smart, fast
noise detection and smooth
attack/release time. It reduces
background noise effectively when
you’re not playing without tone sucking.
●Less Is More
No complex, annoying noise gate
settings any more! Connect this unit to
your pedalboard or amp, set a threshold

Connections & Controls
level, and done.
●Two Modes
The Noise Killer offers two noise
reduction modes for satisfying different
musicians. For most scenarios, set it to
SOFT mode; if you need stronger noise
reduction, set it to HARD mode.
●Carefully Selected Components
The Noise Killer is designed and built
with carefully selected components to
ensure best sound quality and road
performance. The solid Aluminum-alloy
chassis ensures touring reliability, and
True Bypass design gives you a
transparent tone.
Features
●Compact dual-mode noise gate pedal
●Fast noise detection, sensitive but
smooth noise reduction
●Wide threshold range suitable for
every music style
●True bypass provides transparent
tone
●LED indicator shows the working
state
●Enduring, light-weighted Aluminum-
alloy chassis
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Specifications
Power Requirement: 9V DC center
negative
Current Consumption: 26mA
Dimensions: 42x93.5x52mm
Weight: 230g
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DC 9V Jack:
For power supply, use a 9-volt DC
regulated by AC adapter, 500mA
(plug polarity is positive on the
barrel and negative in the center).
Mode Selector:
Selects from two modes:
HARD: Faster, harder noise
reduction
SOFT: Softer, smoother noise
reduction
THRESHOLD Knob:
Controls the noise gate threshold.
Input Jack:
1/4” mono audio jack, for
connecting guitar.
Output Jack:
1/4” mono audio jack, for
connecting to an amplifier.
Footswitch and LED:
Tap to switch the unit on/off. The
LED will lit up when the effect is on.
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