XIEGU GNR1 User manual
Digital Audio Noise Filter
Version 1.0 Dec 2021
GNR1
Opera�ng Instruc�on
XI
E
GU
I. Introduc�on
Digital denoiser SNR upgrade degree
Headphone driving power
Headphone output impedance
Input impedance range
Speaker output power
Speaker output impedance
Volume
More than 22dB
L-CUT adjustment range 5Hz-1280Hz
H-CUT adjustment range 500Hz-5615Hz
100mW@Max
II. Basic Indicators
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3.1 Descrip�on of Panel
Front panel
Rear panel
III. Opera�ng Instruc�on
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Power switch
NR adjustmentPower indicator
Input overload indictor
DC power input
3.1.1 Wiring
3.1.2 Selec�on of input impedance
3.1.3 Adjustment of input sound volume
3.1.4 Adjustment of output sound volume
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Do not use it under over-voltage! Do not directly power with 220VAC!
Aer inserng the headphone, the speaker output will be automacally cut off.
3.1.5 NR noise reduc�on adjustment
3.1.6 Adjustment of the digital filter
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NR noise reducon will cause slight volume loss, so please reasonably adjust
the noise reducon degree to get a comfortable listening experience.
Schema�c Diagram of Filter Composi�on:
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Note: If the actual bandwidth of the filter is less than the useful bandwidth
of the useful signal,
High cut
Low cut
piont
5Hz 5615Hz
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