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collapse expand iconDescription

Long an innovator in wireless technologies, AT's System 9 series reflects a dedication to the art and science of wireless audio. The ATW-901/L consists of an ATW-R900 receiver and ATW-T901 UniPak transmitter with omnidirectional lavalier microphone.

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 is available in handheld, headworn, guitar, lavalier and body-pack configurations. The system offers four compatible user-switchable VHF channels (169.505, 170.245, 171.045, and 171.905 MHz).

Each System 9 configuration includes the ATW-R900 receiver and either a body-pack transmitter or handheld microphone/transmitter. The ATW-R900 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-R900 also offers volume control along with AF Peak, RF and Power indicator lights.
Open Box Audio-Technica ATW-901/L System 9 VHF Wireless Lavalier Microphone System Level 2 169.505 to 171.905 MHz 888365489353

collapse expand iconFeatures

  • Clear sound
  • Four channels to choose from
  • 200' range
  • Affordable
  • Excellent build quality

collapse expand iconSpecs

OVERALL SYSTEM SPECIFICATIONS
  • Operating Frequencies: VHF high band, 169 MHz to 172 MHz
  • Modulation Mode: FM
  • Maximum Deviation: +/-10 kHz
  • Dynamic Range: >/=90 dB (A-weighted), typical
  • Total Harmonic Distortion: <1% (at 1 kHz, +/-10 kHz deviation)
  • Operating Range: 200' (60 m) typical
  • Open range environment with no interfering signals
  • Operating Temperature Range: 40 F (4 C) to 110 F (43 C)
  • Battery performance may be reduced at very low temperatures
  • Frequency Response: 80 Hz to 13 kHz
RECEIVER SPECIFICATIONS
  • 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)
  • Audio Output: 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)
  • Power Supply: 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply
  • Dimensions: 7.48" (190.0 mm) W x 1.82" (46.2 mm) H x 5.06" (128.5 mm) D
  • Net Weight: 12.0 oz (337 grams)
  • Accessory Included: Power supply
BODY-PACK TRANSMITTER SPECIFICATIONS
  • RF Power Output: 10 mW
  • Spurious Emissions: Following federal and national regulations
  • Input Connections: Four-pin Locking Connector
  • Pin 1: GND
  • Pin 2: INST INPUT
  • Pin 3: MIC INPUT
  • Pin 4: DC BIAS +9V
  • Batteries: Two 1.5V AA
  • not included
  • Battery Life: 8 hours (alkaline)
  • Depending on battery type and use pattern
  • Dimensions: 2.76" (70.2 mm) W x 4.08" (103.7 mm) H x 0.98" (24.9 mm) D
  • Net Weight: 2.8 oz (80.0 grams) without batteries

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