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ATS-1 Self Contained Audio AnalyzersHOME/PRODUCTS/ATS-1


Limited Supply

The ATS-1 is now officially on Limited Supply Status. The length of time that the ATS-1 will be available depends on the rate at which we receive orders. All orders will be filled on a “first-come, first-serve” basis until materials are exhausted and the product shifts to Depleted Supply Status. Once Depleted Supply is reached, Audio Precision will offer ATS-1 servicing for 5 years after that date.

The closest replacement products in the Audio Precision portfolio are the APx515 or the APx525 analyzers. Contact your local AP representative to discuss your application.


ATS-1 analyzers bring bench-quality, high-precision test and measurement to maintenance, engineering and production facilities. Whether in broadcast, communications, bench or production use, the ATS-1 offers a complete, easy-to-use audio test set housed in a rugged metal case that’s ready for almost anything.

ATS-1 provides comprehensive two-channel analog and digital generation and measurement. With twelve different measurement functions selectable at the push of a button, they are comprehensive while remaining user-friendly. Easy-to-set-up sweep capability produces graphs of frequency response, distortion vs. frequency and even amplitude sweeps. Non-volatile storage of up to 30 tests allows easy, one-button recall of your favorite test setup.

  • Independent analog and digital signal generators
  • Digital interface analysis
  • HP8903 emulation mode
  • A wide range of analog and digital test signals
  • Programmatic control for high-speed automation (GPIB)
  • A full complement of graphing and reporting options

Model Options

ATS-1 Access Audio Test System with IEEE-488 GPIB interface

ATS-1 Dual Domain (digital and analog) Audio Test System with IEEE-488 GPIB interface. 48kHz digital audio.



Ideal for testing

  • Power amps
  • Digital interfaces
  • Broadcast test
  • Facility service
  • CD / DVD players
  • Televisions

Versatile Emulation

The HP8903 emulation mode allows easy drop-in replacement of aging HP8903s. GPIB connectivity allows users to control the instrument from an external source.


    Download full specifications for ATS-1 Dual Domain, ATS-1 Access

  • Sine Frequency Range
    10 Hz–120 kHz.
  • Frequency Accuracy
  • IMD Test Signals
  • Maximum Amplitude (balanced)
    24.7 Vrms
  • Amplitude Accuracy
    ±0.3 dB
  • Flatness (20 Hz–20 kHz)
    ±0.05 dB
  • Residual THD+N, 1 kHz
    -92 dB + 3 µV
  • Analog Output Configurations
    unbalanced & balanced
  • Digital Output Sampling Rate
    28.8 kHz to 52.8 kHz
  • Encoded audio formats
  • Maximum Rated Input Voltage
    140 Vrms
  • Maximum Bandwidth
    <10 Hz to 200 kHz
  • Amplitude Accuracy (1 kHz)
    ±0.1 dB +100 µV
  • Amplitude Flatness (20 Hz–20 kHz)
    ±0.02 dB
  • Residual Input Noise (20 kHz BW)
    1.5 µVrms
  • Residual THD+N (20 kHz BW)
    –92 dB + 3 µV
  • FFT Resolution
  • IMD Measurement Capability
  • DC Voltage Measurement

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