Doctor giving patient a hearing evaluation using the AVANT A2D+ Audiometer
AVANT A2D+ Audiometer with IP30 Insert Earphones


Compact, PC-Based, Dual Channel
Diagnostic Audiometer

  • The AVANT A2D+ Audiometer software can run stand-alone or from within Noah

  • The AVANT A2D+ is a dual channel, air, bone, speech and masking audiometer. It offers pure tone audiometry via earphones and bone conduction, masking and speech audiometry with SRT (Speech Recognition Threshold), WR (Word Recognition), SISI (Short Increment Sensitivity Index), ABLB (Alternate Binaural Loudness Balance), Stenger, Tone Decay Tests, QuickSIN and Automated Audiometry.

    The product is compact, Approx. 16 cm x 12 cm x 3 cm (L x W x H), and when combined with a laptop is portable and easily configured for any office layout.

  • Features:

    • Dual Channel Diagnostic Audiometer
    • Complete Air, Bone, Speech and Masking Audiometry
    • Built-in Special Tests, Word Lists and Auto-Scoring
    • ACT™ Test - Addresses patient’s complaint - hearing in noise
    • Integrated QuickSIN
    • Automated Audiometry
    • HLS (Hearing Loss Simulator) & MHA (Master Hearing Aid) for 3rd Party Demonstration
    • PC-based and Portable
    • HID Device - True Plug and Play
    • USB Connection to Computer
    • Noah, TIMS®, Blueprint OMS and Sycle Compatible

ACT™ is a New Test In MedRx Audiometers

This test assesses the quality of hearing in noisy situations and takes only 2-3 minutes


  • AVANT A2D+ Audiometer Top
  • AVANT A2D+ Audiometer left side
  • AVANT A2D+ Audiometer Bottom
  • AVANT A2D+ Audiometer right side

Technical Specs

  • Standards:
    ANSI S3.6, Type 2 AE (IEC 60645-1&2) Tone Audiometry, Speech Audiometry, Stenger Test, QuickSIN™, ABLB, SISI, Tone Decay, Hughson Westlake Automated Audiometry

    Channels: Two

    Insert Earphones, Headphones, Bone Conductor, Free Field – Line Level Output

    Tone Stimuli:
    Pure Tone, Warble Tone, Continuous Or Pulsed. Warble Modulation Frequency And Pulse Period Are User Adjustable.

    Masking Signals:
    Tone Audiometry: Narrow Band Noise (Default), Speech Weighted Noise, White Noise. Speech Audiometry: Speech Weighted Noise (Default), White Noise, External Recorded (Opposite Channel).

  • Frequency Range
    USB Power Only:

    Air: 125 Hz – 8000 Hz
    Bone: 250 Hz – 8000 Hz
    Sound Field: 125 Hz – 8000 Hz (Line Level)

    Acoustic Distortion:
    < 1.0% At 500 Hz, 100dB SPL

    Noise Floor:
    < -10dB HL From 125 Hz – 8000 Hz

    1dB Or 5dB Steps, User Selectable

    Minimum / Maximum Output:
    -10 dB To 120 dB HL At 1000 Hz – Air (¼ Inch Mono Jacks)
    -10 dB To 75 dB HL At 1000 Hz – Bone (¼ Inch Mono Jack)

    Free Field Output:
    Frequency Range 125 Hz – 8000 Hz
    Dynamic Range 60-90+ dB SPL At 1 Meter Distance (Using 50 Watt Stereo Amplifier With 89 dB Sensitivity Speakers)

  • Speech Input:
    Microphone (3.5 mm Stereo Jacks)

    I/O Jacks – 3.5mm
    Operator Headphones (Output)
    Operator Talk Forward Microphone
    Patient Talk Back Microphone
    Free Field (Line Out)

    I/O Jacks – 1/4″
    Left Air Conduction (2)
    Right Air Conduction (2)
    Bone Conduction
    Patient Response Switch

    Communication Port:
    USB (Provides All Device Power)

    Power Requirements:
    USB Power +5 Volts DC, Less Than 500mA

    Approx. 16 cm x 12 cm x 3 cm (L x W x H) 
    Approx. 6.5″ x 5″ x 1.25″ (L x W x H)

    Weight: < 500 g < 1 lb

  • Enclosure
    Aluminum Chassis Bottom, Molded PC ABS With Stainless Steel Insert Top Cover With Plastic Feet

    Environmental Requirements
    Operating Temperature: 10°C to 35°C
    Operating Humidity: 30% to 90%
    Storage Temperature -20°C to 50°C
    Storage Humidity: 10% to 90%

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