Hybrid Headphone Amplifier

  • Included a variety of sockets with different output impedance to allow you to choose the optimal output to match your specific needs
  • D/A converter is optimized to be compatible with formats up to PCM 32 bit/384 kHz and DSD128 through USB with selectable Asynchronous and Adaptive modes
  • Included a SPDIF coaxial digital input and two analog inputs with RCA jacks for unbalanced and XLR sockets for balanced audio
  • Use a pair of E88CC tubes for valued sound quality and longevity. They matched bipolar transistors are carefully selected and paired for noise performance
  • Employs high-quality Lundahl input transformers for the best sound quality in balanced inputs
  • Included a pair of an elegant VU meters to add to the analog feel of tubes

    Dedicated Driver Software

    AT-HA5050H is a reference headphone amplifier that is designed to work with any headphones, not just those from Audio-Technica. We understand that all headphones have a distinct sound signature and can perform very differently when paired with an amp.

    We wanted to make headphones perform at their best, while also letting the user choose the sound they like. So we have provided different output choices that can easily alter the sonic characteristics and performance of the headphones.

    Unlike previously released headphone amplifiers, the suffix “H” in the model name signifies that AT-HA5050H is a Hybrid amplifier that employs a pair of tubes at the preamp stage and transistors at the power amp stage.

    Employing tubes in the preamp adds warmth and depth to the music, while its bipolar transistors provide distortion-free Class A amplification that is powerful enough to drive any headphones, irrespective of their impedance level.

    • audio technica AT-HA5050H
    • audio technica AT-HA5050H
    • audio technica AT-HA5050H
  • AT-HA5050H Specifications


    Class A bipolar transistor amplier / vacuum circuit

    Load Impedance

    16 to 600 Ω

    Maximum Output Power

    2,000 mW + 2,000 mW (16 Ω load)
    1,000 mW + 1,000 mW (32 Ω load)
    500 mW + 500 mW (64 Ω load)
    62 mW + 62 mW (600 Ω load)

    Frequency Response

    5 ~ 200,000 Hz (at 10 mW output, 32Ω load)

    Total Harmonic Distortion

    0.08% (20 Hz-20 kHz, at 10 mW output, 32Ω load)

    Channel Separation

    70 dB (20Hz -20 kHz, 32 Ω load)


    Line : 14 dB / XLR : 13.5 dB

    Signal-To-Noise Ratio


    Input Connections

    Analog : Line (RCA x 2) / XLR x 2
    Digital : USB (Type B) / S/PDIF

    Output Connector

    Headphone output
    0.1Ω Output (6.3mm x 2)
    33Ω Output (6.3mm x 2)
    82Ω Output (6.3mm x 2)
    120Ω Output (6.3mm x 2)

    Power Supply

    AC100 V - 120 V / AC220 V - 240 V 50/60 Hz

    Rating Capacity

    53 W


    H100mm x W332mm x D327mm


    11.0 kg

    Accessories Furnished

    Power cable


    audio technica support AT-HA5050H_Brochure_EN.pdf - English Brochure
    audio technica support AT-HA5050H_Brochure_SC.pdf - Simplified Chinese Brochure
    audio technica support AT-HA5050H_manual.pdf - Instruction Booklet