Samson AirLine 99m AH9 Wireless UHF Headset System (D: 542 to 566 MHz)

Model #SW9A9SDE10-D

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Power Requirements Battery
Antenna 1 x Internal
Sync Method IR
Frequency Response 50 Hz to 15 kHz
Signal Processing None
Gain Range Up to 20 dB
Pad None
Audio I/O 1 x Proprietary Input Microphone Is Hardwired to Transmitter Input
RF Output Power 10 mW (EIRP)
Form Factor Headworn with Microphone
Weight 2.1 oz / 60.0 g
Dimensions 6.7 x 3.9 x 5.9" / 17.0 x 10.0 x 15.0 cm
Display & Indicators 1 x LED (Battery Status, Mute, Recharging, Sync)
USB Port None
Approx. Battery Life 8 Hours
Battery Type 1 x Built-In Rechargeable (Included)


Wireless Transmission Digital UHF
Number of RF Channels 100
Included Transmitters 1 x Headworn with Microphone
Diversity True Diversity
RF Frequency Band D: 542 to 566 MHz
Max Operating Range 300' / 91.4 m (Line of Sight)
Max Systems per Setup 8
Dynamic Range >100 dBA
Encryption None
Pilot Tone 35 kHz


Dimensions 3.7 x 1.5 x 4.3" / 9.5 x 3.9 x 11.0 cm (without Antennas)
Weight 6.8 oz / 192.0 g
Operating Temperature 14 to 140°F / -10 to 60°C
Display & Indicators 1 x Multi-Segment LED (Channel)1 x LED (Sync)1 x LED (Peak)
AC/DC Power Adapter 15 VDC at 600 mA, Center-Positive (Included)
Power Requirements AC/DC Power Adapter
Adjacent Channel Isolation >50 dB
Approximate RF Sensitivity -100 dBm
Impedance XLR Output:240 Ohms (Balanced) 1/4" Output:810 Ohms (Unbalanced)
USB Port 1 x USB Type-A (Charging, Host Connection)
Frequency Response 50 Hz to 15 kHz
Phantom Power Protection Not Specified by Manufacturer
Audio Output Level XLR Output:+9 dBu (Balanced)1/4" Output:+14 dBu (Unbalanced)
Audio I/O 1 x XLR 3-Pin Male Balanced Output1 x 1/4" TS Female Unbalanced Output1 x 1/8" / 3.5 mm TS Female Unbalanced Output
Number of Audio Channels 1
Antenna 2 x 1/4 Wave External, Fixed (Side-Mount)
Mounting Options Tabletop
Form Factor Table-Top


Form Factor Headworn
Sound Field Mono
Operating Principle Pressure Operated
Transducer Electret Condenser
Diaphragm 0.12" / 3 mm
Polar Pattern Omnidirectional
Frequency Range 20 Hz to 20 kHz
Maximum SPL 120 dB SPL
Impedance 2 kOhms ± 30%
Sensitivity -45 dBV/Pa at 1 kHz
Operating Voltage 1.5 to 12 V
Weight 0.24 oz / 6.8 g
Product Highlights
  • DE10x Low-Profile Headset Microphone
  • AR99m UHF Micro Receiver
  • AH9 Micro Transmitter on Headset
  • Frequency-Agile UHF Wireless System
  • 100 Operating Channels, 24 MHz Bandwidth
  • Operate up to Eight Simultaneous Systems
  • IR Sync Matches Receiver and Transmitter
  • XLR, 3.5mm, and 1/4" Outputs
  • USB Port for Device Charging
  • Includes USB Charger and AC Adapter
In The Box
  • Samson AirLine 99m AH9 Wireless UHF Headset System (D: 542 to 566 MHz)
  • 4 x Windscreens
  • AC Adapter
  • USB Charger
  • Limited 2-Year Warranty on Main Components
  • Limited 90-Day Warranty on Rechargeable Battery
Still Have Questions?
We can help via Live Chat, Email or you can call us 1-888-840-0464


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