Product Description ◆ full balance / parallel unbalanced drive circuit equipped DSD11.2MHz corresponding dual mono over Lal USB DAC / headphone amplifier. ● UD-503 is a compact enclosure of A4 size, and audio design know-how of TEAC has been cultivated for more than 60 years, is a dual-mono over Lal USB DAC / full balance headphone amplifier which was condensed the design concept of high-end audio . ● also adopted the design concept of "dual mono over Lal Configuration" from the high-end audio and UD-501, developed by with the latest Asahi Kasei Electronics Co., Ltd. DAC VERITA AK4490 2 groups to DAC chip DSD11.2MHz, PCM 384kHz / It supports native playback of 32bit format. In addition, the analog output circuit also can be said that the cornerstone of audio, a new current transmission enhanced buffer amplifier "TEAC-HCLD" circuit for 4 circuit installed, in full balance at the time of XLR balanced output, and parallel imbalance at the time of RCA unbalanced output in drive. We realized D / A converter portion having the expressive power that exceeds the class. Headphone amplifier, discrete configuration that share the amplifier section and the line amplifier. Front panel is equipped with two groups a TRS phone jack, it has the driving force of high-dimensional as a full balance / parallel unbalanced drive the headphone amplifier. In addition, it can use it as a high-quality preamplifier with high precision volume "TEAC-QVCS" a remote control that can be set in 256 steps. ● UD-503 is the next generation of USB DAC / headphone amplifier leading to desktop audio to the next stage.