**DISCONTINUED: SMSL's D300 USB Bluetooth Desktop DAC is sold out and discontinued. Check out the SMSL D400 Pro High Fidelity Desktop DAC! Experience Low Noise Tech, Detailed Design, and Accessible Price with SMSL's D300 Desktop DAC Offers clean, detailed sound with Rohm flagship DAC chip BD34301EKV XMOS XU-208 32bit USB solution with PCM support up to 768kHz and DSD supports up to DSD512 Bluetooth 5.1 supports SBC, AAC, aptX, aptX HD, LDAC High-quality, Gold-plated input / output connections, high-quality knobs, and new, sharper LCD display Upgraded remote with higher sensitivity and improved ergonomics (10m distance) Simple and Clean You don't always need quad DACs or the latest breakthroughs in digital tech to achieve great sound. D300 exemplifies this with a clean implementation of Rohm's flagship BD34301EKV DAC chip. It provides reference sound, and combined with SMSL's flagship digital audio processing, you get impressive, all-around performance. I Need More Power! SMSL knows the value of a high quality power supplies, and D300 uses built-in low-noise, high efficiency power supplies for a stable, reliable, efficient, and transparent system. Key Features Uses fully optimized Rohm flagship DAC chip BD34301EKV for THD+N as low as -116dB USB uses XMOS XU-208 32bit solution with PCM support up to 768kHz and DSD supports up to DSD512 New CK-03 clock processing circuit achieves ultra-low clock jitter Built-in shielding, low-noise power supply processing, improved power efficiency, and lower power consumption Specially designed discrete component stabilized power supply and multiple low-noise stabilized power supplies for low-noise analog circuits Qualcomm's latest Bluetooth 5.1 chip supports SBC, AAC, aptX, aptX HD, LDAC High-quality, Gold-plated input and output connections Newly designed high-quality knobs High-resolution color fully-fitted display screen and screen-off function Tempered glass display panel, higher light transmittance, longer service life Equipped with full-function remote control (effective up to 10m) Japan Audio Association (JAS) Hi-Res certification Specifications Inputs: USB, Optical, COAX, Bluetooth Output: RCA + XLR Output Level XLR: 4.0Vrms, VOL Fixed | 4.5Vrms, VOL Variable RCA: 2.0Vrms, VOL Fixed | 2.3Vrms, VOL Variable THD+N: 0.00015% (-116dB) Dynamic Range: 127dB (XLR) | 125dB (RCA) SNR: 127dB (XLR) | 124dB (RCA) Output Impedance: 200Ω (XLR) | 100Ω (RCA) USB Transmission: Asynchronization USB Compatibility: Windows 7/8/8.1/10/11, Mac OSX, Linux Bit Depth USB: 1bit, 16 ~ 32bit Optical/COAX: 1bit, 16 ~ 24bit Sampling Rate USB: PCM 44.1 ~ 768kHz | DSD 2.8224 ~ 22.5792MHz Optical/COAX: PCM 44.1 ~ 192kHz | DSD64 (DoP) Bluetooth: 5.1 | Support SBC, AAC, aptX, aptX HD, LDAC Power Consumption: 5W Standby Power: