Teac UD-505Dual monaural USB DAC headphone amplifier supporting DSD512 and PCM32 768 The UD 505 is a flagship dual monaural USB DAC with an integrated fully balanced headphone amplifier, that fuses high end audio design concepts and TEACs decades of audio design experience, in an A4 sized footprint. Like its predecessor models, the UD 501 and UD 503, it employs a dual monaural circuit design to process audio signals with even greater purity, with the latest