OPPO HA-2SE Portable Headphone Amplifier Features and Characteristics https://goo.gl/PjjUA7
What you need to get a quality and punchy sound from a mobile device? OPPO HA-2SE The very device with a dedicated audio chip, decent headphones, well, of course - a willingness to experiment, for example, with useful additions to the sound source. An example of this is the headphone amplifier with built-in DAC the OPPO HA-2SE , turning, for example, a smartphone a true "Personal Orchestra", which gets from listening to the aesthetic pleasure. Well, it's time to listen to the resounding "box."
OPPO HA-2SE Portable Headphone Amplifier Specifications
OPPO HA-2SE Functions: headphone amplifier, USB-DAC, backup battery (power bank).
OPPO HA-2SE Section USB-DAC:
OPPO HA-2SE Chip: ESS Sabre32 Reference ES9028-Q2M
OPPO HA-2SE Input signals: PCM 32-bit / 384 kHz, DSD64 / 128/256
OPPO HA-2SE Digital inputs: USB A (for iPod / iPhone / iPad), USB micro-B (for PC / OPPO HA-2SE Mac Android-smartphones, and computers)
OPPO HA-2SE Amplifier section:
OPPO HA-2SE Frequency range: 20 Hz - 200 kHz
OPPO HA-2SE Recommended headphone impedance: 16-300 ohms
OPPO HA-2SE levels at the outputs (linear and headphone, RMS): 1,0 In
OPPO HA-2SE The maximum output power is 300 mW (at the load of 16 ohms), 220 mW (32 Ohm), 30 mW (300 ohms)
The output impedance of the amplifier: 0.5 Ohm
OPPO HA-2SE Outputs: headphone (3.5 mm), linear (3.5mm)
OPPO HA-2SE Input: linear (3.5mm)
OPPO HA-2SE Battery: Lithium-Polymer 3000 mAh
OPPO HA-2SE operating time per charge: 13 hours (connection to the source of analog), 7 hours (USB-mode DAC)
OPPO HA-2SE Battery charging time: about 1 hour 30 minutes
OPPO HA-2SE Dimensions: 68x137x12 mm
OPPO HA-2SE Weight: 175 grams
OPPO HA-2SE Packaging equipment
OPPO HA-2SE Packaging multilayer: top - box made of thin cardboard, under it - from the more dense inside - several "floors": in a recess on the top is the device OPPO HA-2SE itself, under it - the cardboard box with the documentation, cables and adapters, side by side in a special recess - on surprisingly large power adapter for USB-cable, designed for an output current up to 5 A (!), such a solid power required for rapid battery charging technology for VOOC.
On the wires is to tell apart. Needless to say, there is a USB A cable - micro-USB B for PC connection and charging. Another - short USB A - Lightning (for Apple devices) and the same length micro-USB B - micro-USB B (for connecting to the Android-smartphone). And just as short an analog cable with 3.5mm connectors.
And finally, the main brand accessory - a pair of thick flat rubber rings for fastening the amp sources.
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