Audio-Technica System 9 Frequency-Agile VHF Wireless System Bodypack Transmitter, 169 to 172MHz

SKU: ATATWT901A MFR: ATW-T901A
$129.00
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Key Features

  • Experience reliable wireless audio with the Audio-Technica System 9 transmitter.
  • Achieve clear sound quality with this VHF wireless system, perfect for presentations.
  • Enjoy up to 8 hours of battery life for uninterrupted performance with this transmitter.
  • The bodypack transmitter offers a 200' range, ideal for dynamic stage use.
  • Simple setup with the System 9; easy to use for both beginners and pros.
  • This frequency-agile wireless microphone system ensures minimal interference during use.
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Special Order?Estimated to Ship: 08/22/2025
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Audio-Technica ATW-T901A Specifications

Overall System

Overall System

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  • Type

    VHF high band

  • Operating Frequencies

    169.505, 170.245, 171.045 and 171.905 MHz

  • Modulation Mode

    FM

  • Maximum Deviation

    +/-10kHz

  • Dynamic Range

    >=90 dB (A-weighted), typical

  • Total Harmonic Distortion (THD)

    <1% (at 1kHz, +/-10kHz deviation)

  • Operating Range

    200' (60m) typical, open range environment with no interfering signals

  • Operating Temperature Range

    40 to 110 deg. F (4 to 43 deg. C), battery performance may be reduced at very low temperatures

  • Frequency Response

    80Hz to 13kHz

Transmitter

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  • RF Power Output

    10mW

  • Spurious Emissions

    Following federal and national regulations

  • Input Connections

    Four-pin locking connector
    Pin 1: GND
    Pin 2: Instrument input
    Pin 3: Microphone input
    Pin 4: DC bias +9 V

  • Batteries

    2x 1.5 V AA

  • Battery Life

    Alkaline: 8 hours (depending on battery type and use pattern)

General

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  • Dimensions (WxHxD)

    2.8 x 4.1 x 1.0" (7.11 x 10.41 x 2.54cm)

  • Weight

    2.8 oz (79.38g) without batteries

  • UPC Code

    4961310143336

About Audio-Technica ATW-T901A

You can elevate your audio performance with the Audio-Technica System 9, a highly versatile four-channel frequency-agile VHF wireless system engineered to deliver unwavering reliability, effortless setup, and crystal-clear, natural sound quality. This system is meticulously designed with sleek, stackable, and contemporary aesthetics, ensuring it not only performs exceptionally but also complements any setup aesthetically.

The System 9 is adeptly crafted to cater to a diverse range of audio needs, available in an array of configurations including handheld, headworn, guitar, lavalier, and body-pack, making it a perfect fit for a variety of performance contexts. With four compatible user-switchable VHF channels (169.505, 170.245, 171.045, and 171.905 MHz), this system provides the flexibility needed to navigate through complex RF environments or to simply find a clear channel for your performance.

The ATW-T901a UniPak body-pack transmitter, a key component of the System 9, is a testament to Audio-Technica's commitment to versatility and quality. It features a high-impedance input that is ideal for instruments, as well as a low-impedance input with a bias connection, making it compatible with both dynamic and electret condenser microphones. This allows for seamless integration with a wide array of audio sources, ensuring that whether you're a musician, speaker, or performer, your sound is transmitted with utmost fidelity.

Designed with the user in mind, the body-pack transmitter is powered by internal AA batteries, offering convenience and extended use. The intuitive Power/Mute switches and input Trim (level) adjustments provide you with complete control over your audio output, allowing for on-the-fly modifications to ensure your performance is always at its best.

Whether you're on stage, in a lecture hall, or at a dynamic live event, the Audio-Technica System 9 Frequency-Agile VHF Wireless System Bodypack Transmitter, operating within the 169 to 172MHz frequency range, is engineered to meet the demands of professional audio applications, delivering a performance that stands out in clarity and reliability.

Audio-Technica ATW-T901A Features

  • 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

Warranty Information

This product has a limited warranty of 24 months.

Product Documents

User Manual

Key Features

  • Experience reliable wireless audio with the Audio-Technica System 9 transmitter.
  • Achieve clear sound quality with this VHF wireless system, perfect for presentations.
  • Enjoy up to 8 hours of battery life for uninterrupted performance with this transmitter.
  • The bodypack transmitter offers a 200' range, ideal for dynamic stage use.
  • Simple setup with the System 9; easy to use for both beginners and pros.
  • This frequency-agile wireless microphone system ensures minimal interference during use.

What's in the box:

  • Audio-Technica System 9 Frequency-Agile VHF Wireless System Bodypack Transmitter
  • Audio-Technica 2 Year Limited Warranty