Like its predecessors UD-501 and UD-503, this device features a dual-mono circuit design for processing audio signals with even greater purity, utilizing the VERITA AK4497 DAC on each channel. This enhances the signal-to-noise ratio, as each channel is now processed separately in mono mode. Additionally, it supports playback of native DSD512 (22.5 MHz) and 768 kHz/32-bit PCM. The analog circuit section, which is crucial for sound quality, includes four TEAC-HCLD buffer amplifier circuits. These allow for various driving modes (fully balanced drive for balanced output and parallel drive for unbalanced output). The headphone circuit section is a standout feature. The completely new 4.4mm headphone jack, called Pentaconn, enables both balanced and active-ground connections through the same jack. Traditional 1/4-inch phone jacks are also available. In addition to various digital and analog inputs, you can enjoy wireless streaming of audio content in excellent quality from your smartphone to this outstanding USB DAC, thanks to a Bluetooth receiver with LDAC and Qualcomm aptX HD support. The UD-505 is a compact and sophisticated USB DAC and headphone amplifier that supports the high sampling rates of the latest hi-res audio formats.