OPPO HA-1 Headphone Amplifier

OPPO HA-1 Headphone Amplifier.

Packed with features and performance, the OPPO HA-1 Headphone Amplifier and DAC is a marvel of modern technology.  Of course the HA-1 has a high quality, discrete Class-A headphone amp and the highly regarded ESS Sabre Reference ES9018 DAC chip at it's core providing amazing sound quality to the 1/4" or 4-pin XLR balanced outputs to any headphone.  The connectivity of this unit is phenomenal with fully balanced XLR analog inputs as well as RCA connections, USB/Toslink/Coaxial digital inputs, Bluetooth AptX connectivity, and can accept a digital signal from an iPod/iPhone/iPad.  There is an included remote control, but the HA-1 can also be fully controlled via Bluetooth with an app for your Apple or Android device.  We could literally write a book about all the great things about the HA1, so please don't take our word for it, get one for yourself!


  • Discrete Class-A headphone amp with clean, powerful toroidal transformer power
  • High quality ESS Sabre DAC (ES9018) that accepts signals up to 24/192KHz
  • Fully balanced 4-pin XLR headphone output as well as a standard 1/4" connection
  • USB, Optical (Toslink), Coaxial, and AES/EBU digital inputs
  • RCA and dual 3-pin XLR balanced analog inputs
  • Pre-amp outputs via RCA or XLR connections
  • Bluetooth capable from any compatible device
  • Accepts a digital signal from an iPod/iPhone/iPad
  • Includes remote control, but can also be controlled by app from any Apple/Android device
  • Trigger input and output to automatically turn on a connected power amp when using the pre-amp outputs


  • Dimensions: (W x H x D) 10.0 x 3.1 x 13.1 inches, 254 x 80 x 333 mm
  • Weight: 13 lbs., 5.9 kg
  • Sampling Frequencies (Hz): 44.1K, 48K, 88.2K, 96K, 176.4K, 192K (USB - 352.8K, 384K)
  • Bit Depth: 16-bit, 24-bit (USB - 32-bit)
  • Output Power: 500mW@32ohms / 200mW@600ohms (RCA input), 2000mW@32ohms / 800mW@600ohms (XLR input)
  • THD+N at 1k Hz: < 0.0018% (< -95 dB) (XLR input), < 0.0056% (< -85 dB) (RCA input)
  • Channel Separation: > 120 dB (XLR input), > 90 dB (RCA input)
  • Signal-to-Noise Ratio: > 111 dB
  • Output Impedance: 0.5 ohms (XLR input), 0.7 ohms (RCA input)
  • Compatible Apple Devices: iPhone (6, 6+, 5S, 5C, 5, 4S), iPad (4th gen., mini) iPod Touch (5th gen.)
  • Manufacturer's Warranty: 2 years

What's In The Box:

  • OPPO HA-1 headphone amp
  • Remote control with battery
  • Bluetooth antenna
  • 3.5mm to 1/4" adapter
  • IEC power cable (4.5ft)
  • Owner's Manual