OPPO Digital whose PM1s we reviewed here, released the HA-2 portable headphone amplifier and DAC in the last day HA-2-banneror so.

The HA-2 looks a very pretty portable headphone amplifier with built-in rechargeable battery. It is engineered to enhance music playback from mobile phones and portable music players. Its genuine leather casing with contrast stitching and beveled aluminum edges are eye-catching and cannot be confused with any other product.

Featuring hybrid class AB amplification and a USB DAC, the HA-2 offers digital-to-analogue conversion for Apple’s iPhone/iPod products, a wide range of Android devices, PC and Mac computers. The HA-2 may be used to charge mobile devices on-the-go and itself can be efficiently charged in 30 minutes.

Key features of the HA-2 include:

  • Ultra-slim Design – Stacking the HA-2 on top of some smartphone models is often still thinner than other portable headphone amplifier models alone.
  • ESS Sabre32 Reference DAC – ES9018-K2M DAC chip delivers high-resolution performance with extremely low noise and distortion.
  • High-Resolution Audio – The HA-2 supports PCM audio up to 384 kHz / 32-bit, DSD audio up to 12 MHz (DSD256 or DSD4x). No Camera Connection Kit required for high-resolution playback from iOS devices.
  • Multiple Devices Support –The HA-2 supports multiple device types for digital-to-analog conversion via USB: iPod / iPhone / iPad, smartphones with USB OTG feature, PC and Mac computers.
  • Rapid Charging – The HA-2’s internal battery can be quickly charged in about 30 minutes with the patented rapid charger.
  • Mobile Power Bank – The HA-2 functions as an external battery pack to charge mobile devices.

The HA-2 offers two USB DAC input ports – one for Apple’s iPhone/iPod, and the other for Android devices, PC and Mac computers. A 3.5 mm input works with the remaining portable music players that do not have a USB-compatible digital output. There are two gain level settings. The High Gain mode is capable of driving large power-hungry headphones, delivering up to 300 mW into 16-Ohm headphones. The Low Gain mode is intended for sensitive In-Ear Monitor type earphones. For users who like a bit more punch and impact with their music, the HA-2 offers a Bass Boost function that is implemented purely with analogue audio circuits.

The HA-2 is available now in limited supply from OPPO Digital’s web site at a retail price of $299.

 

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