OPPO’s Latest Headphone Amp and DAC
OPPO Digital today introduces an updated version of the a HA-2 portable headphone amplifier and DAC, HA-2SE. 
Aesthetically, the HA-2SE continues the HA-2’s design – genuine leather casing with contrast stitching and bevelled aluminium edges. Inside, the digital-to-analogue converter (DAC) chip is upgraded to the ES9028Q2M, the top-of-the-line from ESS Technology’s SABRE32 Reference series for portable designs. The headphone amplifier is further optimized for very sensitive In-Ear Monitors, with a lower noise floor and higher signal-to-noise ratio over the HA-2.
Featuring hybrid class AB amplification and a USB DAC, the HA-2SE offers high performance digital-to-analogue conversion for Apple’s iPhone/iPod products, a wide range of Android devices, PC and Mac computers. Equipped with a 3000mAh internal battery and OPPO’s patented safe rapid charging technology, the HA-2SE may be conveniently used to charge mobile devices on-the-go and can itself be efficiently charged in 30 minutes.
Being a “Made for iPhone” certified device and coming with a Lightning cable included, the HA-2SE can charge the iPhone and play music at the same time. When used with the right apps, the HA-2SE supports bit-perfect playback of high resolution music, exceeding the 48 kHz sample rate limitation of using the phone’s built-in headphone output or headphone adapter.
In addition to the USB DAC inputs, the HA-2SE provides a 3.5 mm line-in jack for portable music players that do not have a USB-compatible digital output. The same jack doubles as line-out when the HA-2SE is used as a DAC. The headphone amplifier has 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-2SE offers a Bass Boost function that is implemented purely with analog audio circuits.
Priced at $299, the HA-2SE can be ordered from OPPO Digital’s web site or resellers. The HA-2SE will be available for audition and demo at the Rocky Mountain Audio Fest in Denver during the weekend of October 7 – 9.
