Matrix Audio HPA-2 Classic DAC/Ampsearch

Matrix Audio HPA-2 Classic DAC/Amp

Matrix Audio HPA-2 Classic DAC/Amp

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An All-in-One Desktop Solution

An improved version of the HPA-2, Matrix Audio’s highly regarded DAC/amp combo, the HPA-2 Classic updates the internals and adds a more streamlined appearance. It features a low- and high-gain selection at the back, making it an ideal pairing for both lower- and higher-impedance headphones. For those adventurous audiophiles into modding, the unit’s op-amps are interchangeable, giving you the possibility of rolling in other op-amps if you’d like. Equipped with the popular Cirrus Logic CS4398 DAC chip, the HPA-2 Classic offers support for 24-bit/192kHz PCM and 2.8MHz/5.6MHz DSD. Details include a knurled volume knob, a headphone protection function, and a mirror-like gloss finish on the front panel.

The Reviews Are In

One Head-Fi reviewer says, “This is a great-looking, well-built amp/DAC combo that would stand proud as an all-in-one desktop solution, or as a lone headphone amp fed by another source. It is perfect for driving hard-to-drive full-size headphones effortlessly with control, body, and refinement. It may not be the most versatile amp out there, nor is it the flattest-sounding amp, but is does offer a slightly full sound which I find works very well with the Beyerdynamic T1, Fischer Audio FA-003ti, and others. Overall a great device … I can highly recommend it.”


Line Output

  • SNR: >-95dB at 20Hz–22kHz A-Weighting
  • THD+N: <0.0017% at 1kHz 1Vrms A-Weighting
  • Frequency response: 20Hz–20kHz (+0.01dB/-0.04dB)
  • Output impedance: 51 ohms

Headphone Output

  • SNR: >-95dB A-Weighting
  • THD+N: <0.0017% at 300 ohms 13mW 1kHz A-Weighting
  • Frequency response: 20Hz–20kHz (+0.01dB/-0.04dB)
  • Output impedance: 10 ohms
  • Output power: 110mW at 33 ohms / 310mW at 300 ohms / 160mW at 600 ohms, at THD+N=1%

USB Input

  • USB: XMOS Asynchronous USB Audio class 2.0
  • SNR: >-103dB A-Weighting
  • THD+N: <0.0009% at 1kHz A-Weighting
  • PCM sample rate: 16–24 Bit/44.1kHz 48kHz 88.2kHz 96kHz 176.4kHz 192kHz
  • DSD sample rate: DSD2.8MHz/DSD5.6MHz (DoP and ASIO Native)

System Support

  • Windows 7/8/8.1/10 systems need to install the driver supplied
  • Mac OS X 10.6.4 and above versions have native support and do not require a driver
  • Can be used with most Android devices via the OTG cable
  • Can be used with iOS devices via the Apple Camera Connection Kit


  • Power voltage: 230V position is fit for AC220V–240V 50/60Hz; 115V position is fit for
  • AC100V–120V 50/60Hz
  • Power consumption: <15W
  • Fuse: AC250V/500mA 5 x 20mm


  • Color: Black
  • Gain: L = +6dB, H = +15dB
  • Dimensions, including protrusions: 11 x 4.7 x 1.9 in (280 x 120 x 47 mm)
  • Weight: 2.7 lbs (1.22 kg)


  • Disk with driver and manual
  • Power cord
  • USB cable


All orders will be shipped by Massdrop.

Estimated ship date is July 11, 2018 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.