Xiegu GNR1 Digital Audio Noise Filter, DNR, 3W Speaker, 3.5mm & RCA Out

Xiegu GNR1 Digital Audio Noise Filter

The Xiegu GNR1 is a dedicated digital audio processing unit combining digital noise reduction (DNR) and digital filtering in a single compact box. Designed to work with any radio transceiver, receiver, or scanner, it cuts background noise by more than 22 dB, dramatically improving signal clarity and intelligibility — particularly on weak or noisy signals. With dual audio outputs, adjustable input/output levels, and selectable input impedance, it integrates cleanly into any shack setup.

Key Features

• Digital noise reduction with >22 dB SNR improvement — cleaner audio on weak and noisy signals
• Adjustable digital filter — L-CUT (5–1280 Hz) and H-CUT (500–5615 Hz) for precise audio shaping
• Dual audio output — 3.5mm stereo and RCA, plus automatic headphone/speaker switching
• 3W speaker output (8Ω, THD ≤0.2%) — drives external speakers directly
• Selectable input impedance — 16Ω low or 10kΩ high, compatible with virtually any radio
• Independent input and output volume controls — fine-tune levels without affecting your transceiver

Technical Specifications

• DNR SNR Improvement: >22 dB
• L-CUT Range: 5–1280 Hz
• H-CUT Range: 500–5615 Hz
• Speaker Output Power: ≥3W (8Ω, THD ≤0.2%)
• Speaker Output Impedance: 4–16 Ω
• Headphone Output Power: 100 mW max
• Headphone Output Impedance: 16–64 Ω
• Input Impedance: 16Ω (low) / 10kΩ (high)
• Operating Voltage: DC 12V ±15%
• Dimensions: 159 × 44 × 143 mm

In the Box

• 1× Xiegu GNR1 Digital Audio Noise Filter
• 1× Power Cable
• 1× Audio Cable