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Audio-Technica ATW-902A System 9 Series Wireless Microphone System

  • Our Price
  • Regular price $174.95


Enjoy Worry-Free Pristine Sound With The Audio-Technica System 9 Wireless Hand-Held Microphone System

Audio-Technica's System 9 is a four-channel frequency-agile wireless system designed to provide rock-solid performance along with easy setup and clear, natural sound quality. Featuring sleek, stackable, contemporary styling, System 9 has compatible options for headworn, guitar, lavalier and body-pack configurations as well. The system also offers four compatible user-switchable VHF channels (169.505, 170.245, 171.045, and 171.905 MHz)

This System 9 configuration includes the ATW-R900a receiver and ATW-T902a handheld dynamic unidirectional microphone/transmitter. It also includes the AT8456a Quiet-Flex™ stand clamp. The ATW-R900a is a non-diversity, single-channel receiver with advanced dipole antenna design for extended operating range, which improves operation by providing a ground element in addition to the usual signal element. The ATW-R900a also offers volume control along with AF Peak, RF and Power indicator lights.

  • Easy operation and clear, natural sound quality
  • 4 selectable frequency-coordinated VHF channels
  • Balanced XLR and unbalanced 1/4" output jacks enable use with a wide variety of audio gear
  • Reliable performance and durable construction
  • Advanced dipole antenna system for extended operating range



  • Operating Frequencies: VHF highband, 169 MHz to 172 MHz
  • Modulation Mode: FM
  • Maximum Deviation: +/-10 kHz
  • Frequency Response: 80 Hz to 13 kHz
  • Operating Range: 200' (60 m) typical (Open range environment with no interfering signals)
  • Total Harmonic Distortion: less than 1% (at 1 kHz, +/-10 kHz deviation)
  • Operating Temperature Range: 40° F (4° C) to 110° F (43° C) Battery performance may be reduced at very low temperatures

ATW-R900a Receiver

  • Receiving System: Non-diversity, single-channel, dual antenna system
  • Image Rejection: 50 dB minimum
  • RF Sensitivity: 20 dBuV at 60 dB S/N ratio (50 ohms termination)
  • Power Supply: 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply
  • Dimensions: 7.48 (190.0) W x 1.82 (46.2) H x 5.06" (128.5 mm) D
  • Weight: 12.0 oz (337 g)
  • Accessories Included: Power supply
  • Nominal Output Level
    • XLR, balanced: 350 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load)
    • 1/4" (6.3 mm), unbalanced: 700 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load)

ATW-T902a Handheld Transmitter

  • RF Power Output: 10 mW
  • Spurious Emissions: Following federal and national regulations
  • Battery Type: Two 1.5V AA (not included)
  • Battery Life: 8 hours (alkaline) Depending on battery type and use pattern
  • Dimensions: 9.91" (251.8 mm) long, 2.11" (53.5 mm) diameter
  • Net Weight: 9.2 oz (260 g) without batteries
  • Accessories Included: AT8456a Quiet-Flex™ stand clamp

Manufacturer: Audio-Technica
Model: ATW-902A
Warranty: See manufacturer website for details
SKU: I501135-N-4-B
UPC: 4961310141202