Audiophilepure

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“The HA-2 employs a hybrid class AB amplification circuit and a convenient asynchronous USB-DAC interface that allows the unit to receive digital audio inputs from any attached device. In my case this included the aforementioned Dell PC and an Apple ipad. The amp utilizes the superb ESS Sabre32 DAC which supports both 384 kHz PCM and DSD256 encoding and offers high-quality digital-to-analog conversion for a wide array of Apple-based devices, PCs and Mac computers. The amp operates on battery power and takes about an hour to charge fully when the battery runs down. I got about 6 or 7 hours of steady playback in-between charges. Even after two weeks of non-use, the HA-2 still retained about 75% of its playback power. Wow!”