ATI HDA100 NanoAmp Series Single Channel Headphone Amplifier


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Dale #:ATI-HDA100

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  • The HDA100 is a rugged AC powered headphone amplifier that will provide excellent performance driving a wide range of typical stereo headphones. It will drive the usual 32 to 600 ohm high efficiency stereo headphones to teeth rattling levels around 120dB SPL with a combination of high output voltage swing (16Vp-p) for high impedance phones and a protected high current capability (.2Ap-p) for low impedance phones. It will do the above at distortion levels below .10% and response flat to .25db both measured over the full frequency range of 20Hz to 20kHz.

    The HDA100 is powered by 24VDC from an external power module such as the WA100-1. The DC power connector is center pin negative, sleeve position with a 2.1 mm center pin and a 5.5mm outer sleeve. Two HDA100 can share one WA100-1 with accessory DC loop-thru cable 20602-1.


    • Stand alone device
    • High performance
    • Single stereo output headphone amplifier
    • TRS & XLR line level inputs
    • Stereo/Mono switch
    • Battery powered option
  • OUTPUT 120dB SPL driving typical 32 to 600 ohm headphones; HDA100 provides 16V p to p for high impedance headphones and up to. 2A p-p to low impedance headphones.
    INPUT +4 or -10dBu nominal level (internal jumper plug selection) for 1mW output. +24dBu maximum input level, 40Kohm balanced input impedance.
    DISTORTION .1% maximum THD, 20Hz to 20kHz, below clipping.
    RESPONSE +0/-.25dB 20Hz to 20kHz NOISE -94dBm E.I.N., 20kHz measurement BW.
    CONNECTORS Input: ¼-inch TRS jacks and XLR connectors.
    Output: ¼-inch TRS stereo jack.
    Power: Cylindrical 5.5mm OD, 2.1mm 1D, pin negative.
    POWER 24VDC nominal at up to .2A from external power supply, WA100-1, -2 or -2E.
    SIZE 1.72' H X 5.75" W X 6.0"D; 1.5 lbs.
    POWER SUPPLIES WA 100-1 Wall mount power supply (UL, CSA), 24VDC @ .4 Amp, 115 VAC/60 Hz. WA100-2 Table top power supply with IEC 320 AC connector, 24VDC @ .4 amp, 230VAC/50 Hz.
    MOUNTING 21075-501 Rack mounting kit
    WARRANTY Limited, One Year Warranty
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