HD TW9 Pro Wireless Microphone
Frequency range: 640–690 MHz
Special feature: Automatic shut-off sensor function
Adjustable channels: 100 x 2 (1600 frequency options)
Outputs: 2 XLR outputs (one per channel) and 1 mixed 1/4″ output
Oscillation mode: Phase-Locked Loop (PLL) frequency synthesis
Frequency stability: ±10 ppm
Bandwidth: Up to 42 MHz
Maximum deviation: ±48 kHz
Standard deviation: ±24 kHz
Sensitivity: 112 dB
Frequency response: 20–20,000 Hz
Frequency stability: ±0.001%
Harmonic distortion: ≤0.5%
Dynamic range: >121 dB
Total distortion: <0.5%
Signal-to-noise ratio: ≥110 dB
Static squelch threshold: 0–6 dB
Balanced output: +12 dB (2.5V) / 600 ohms
Transmission power: 3–30 mW
Modulation mode: Frequency Modulation (FM)
Output power: 100 mW
EQ Presets:
– Preset 1: Flat
– Preset 2: Low-cut (-3 dB at 180 Hz)
– Preset 3: Low-cut/High-boost (-3 dB at 180 Hz, +6 dB at 10 kHz)
– Preset 4: High-boost (+6 dB at 10 kHz)
Adjacent channel rejection: Typical ≥ 65 dB
Intermodulation rejection: Typical ≥ 65 dB
Power: <110mA (HF) < 80mA (LF)
Battery specifications: 2 x AA batteries
Operating temperature: -10°C to +55°C
Power supply specifications: 100-240V, 50-60Hz, 12VDC (switching power adapter)
Power source: 1.5V x 2
Operating range: Up to 700 feet (210 meters) – in ideal conditions