Fostex Desktop Headphone Amplifier with DAC Balanced Output (HP-A4BL) Equipped with 4-pin XLR balanced output; 1/4-inch unbalanced output Newly developed audio-grade capacitors; highly precise crystal with low phase noise Playback 24bit/192kHz PCM and 11.2MHz DSD audio; high performance DAC (Barrbrown PCM1792A) Asynchronous transfer up to 192kHz/24bit compatible with USB Audio 2.0 HI/LO gain selection (10dB) for wider selection of headphones; digital filter selecting roll-off characteristics and cut-off frequencies