As smartphone and digital media players have increased their capacity and are now capable of lossless and hi-res formats they have become more suited to high fidelity audio. Up until now, the weak link has always been the DAC and amplifier capabilities of such multi-purpose products.
Introducing the OPPO HA-2 portable headphone DAC and amplifier. It uses the renowned Sabre Reference 32bit DAC partnered with a quality audio path and advanced Class A/B amplifier for serious audio quality, and volume, on the go.
Dimensions: (W x H x D) 68 x 157 x 12 mm
Weight: 175 grams
Frequency Response: 20 Hz – 20 kHz
Audio-in Level 1 Vrms
Line-out Level 1 Vrms
Recommended Headphone Impedance: 16 Ohm – 300 Ohm
Maximum Headphone Output: Power 300 mW into 16 Ohm, 220 mW into 32 Ohm, 30 mW into 300 Ohm
Output Jacks: 3.5 mm stereo headphone, 3.5 mm stereo line-out
Input Ports Analog: 3.5 mm stereo audio-in
Digital: USB A for iPod / iPhone / iPad;
USB micro-B for smartphones with USB OTG feature and computers.
DAC Chip: ESS Sabre32 Reference ES9018-K2M
Input Format: Stereo PCM, Stereo DSD (DoP v1.1 or native)
PCM Sampling Frequencies: 44.1 kHz - 384 kHz, 16 / 24 / 32-bit
DSD Sampling Frequencies: 2.8224 MHz (DSD64), 5.6448 MHz (DSD128), 11.2896 MHz (DSD256, native mode only)
Profile: USB 2.0, USB Audio 2.0
Battery: Built-in Battery type 3000 mAh lithium polymer rechargeable battery
Battery Operation: Time Approx. 13 hours for analog source via Audio-in. Approx. 7 hours for digital sources via USB
Charging Time: Approx. 1 hour 30 minutes
The OPPO PM-3 combines true audiophile performance, elegant styling, noise isolation and portability into a pair of sleek lightweight Planar Magnetic headphones. With the PM-3, users can easily recreate the experience of listening to a pair of flagship headphones on a flagship amplifier or a high quality 2-channel speaker system in an optimised listening room, but in a portable form factor that can be taken anywhere. Tipping the scale at just slightly over 10 oz., the PM-3 is the world's lightest closed-back planar magnetic headphones. This makes the PM-3 the ideal headphones for a person who is always on the go. Its elegant styling and exquisite workmanship make the headphones a pleasure to wear in public, and its light weight and exceptional comfort make it easy to listen for hours on end. The closed-back nature of the PM-3 provides isolation from the outside world, blocking out the surrounding noise while avoiding sound leakage from the headphones.