An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.
Following the success of the Hidizs S9 Portable USB DAC/Amp, the brand has announced the latest upgraded Hidizs S9 Pro. It brings the strengths of an ESS Sabre DAC chip housing flagship-grade ES9038Q2M, an advanced 32-bit audio signal deco…