OPPO HA-2 Portable Headphone Amplifier & DAC
Amazon.com Price: $299.99 (as of 11/07/2018 19:25 PST- Details)
High-resolution USB DAC for Apple/Android/PC/Mac
ESS Sabre32 Reference ES9018-K2M DAC chip
Two gain settings for optimal headphone matching
- Description
- Amazon Customer Reviews
Description
The HA-2 is an elegant yet sophisticated portable headphone amplifier with built-in rechargeable battery. It is engineered to enhance music playback from mobile phones and portable music players. Aesthetically, the HA-2 does not look like a typical or generic electronic device.
SPECIFICATIONS
Dimensions WxHxD: 2.7×5.375×0.5 inches, 68x137x12 mm
Weight: 6.2 oz, 175 grams
Frequency Response: 20 Hz – 200 kHz
Audio-in Level: 1 Vrms
Line-out Level: 1 Vrms
Headphone Impedance: 16 Ohm – 300 Ohm
Max Headphone Output Power: 300 mW into 16 Ohm, 220 mW into 32 Ohm, 30 mW into 300 Ohm
Headphone Amplifier Output Impedance: 0.5 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 Freq: 2.8224 MHz (DSD64), 5.6448 MHz (DSD128), 11.2896 MHz (DSD256, native mode only)
Profile: USB 2.0, USB Audio 2.0
Built-in Battery: 3000 mAh lithium polymer
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
INCLUDED ACCESSORIES
Power Supply Unit (Rapid Charging Charger)
USB A – USB micro-B data and rapid charging cable
USB A – Lightning data cable (for Apple devices)
USB micro-B to micro-B data cable (for Android and other smartphones)
3.5 mm – 3.5 mm stereo audio cable
Silicone rubber band (2 pieces)
User guide and warranty documents
High-resolution USB DAC for Apple/Android/PC/Mac
ESS Sabre32 Reference ES9018-K2M DAC chip
Two gain settings for optimal headphone matching
Mobile power bank for charging your phone