Hidizs S9 Pro

USB Bridge
Recommended[Mixed] PRO
hyper tiny form factor,
good headphone required,
breathtaking audio results with PCM
funny code of LED colors
24 Bit output NOT 32 Bit
DSD128 max in DOP,
DSD Native not working properly on Linux,
audible pops and clicks during PCM<>DSD change,
poor heat dissipation


Hi-Res Audio Certified

Hi-Res Audio certification is a design proposed and defined by Sony and recognized by JAS (Japanese Audio Association) and CEA (Consumer Electronics Association), requires the capability of audio devices to handle the digital resolution more than 24-bit/96kHz, for the purpose of performance extreme music quality and original sound reproduction.


Clean yet transparent. Excellent bass with fairly good sufficient depth, mids sounds full, and the smooth sparkly treble feels lively. Obviously S9 Pro is the master when compared with S9.

PCM Supports Up to 32bit/768kHz

With the up to 32bit/768kHz PCM, Hidizs S9 Pro DAC amplifier is ideal for a high-resolution audio source playback. Get yourself a S9 Pro, and experience unbeatable sound.

Native DSD Supports Up to 512

Make Your Mobile Phone a HiFi Music Player Via S9 Pro. The improvement of mobile phone audio quality will surprise you – Enjoy the music like never before!

3.5mm + 2.5mm Output

As a portable but powerful DAC dongle, S9 Pro has both single-ended and balanced outputs, which means greater power, detailed resolution, more functional, and user friendly. It can even powerfully drive all full-size headphones.

Sampling Rate Indicator Light

LED indicator lights up in different colors, synchronized with the sample rate of the music being played.
Yellow: DSD64/128
Purple: DSD256/512
Blue: PCM176.4/192(Khz)
Red: PCM 352.8/384(Khz)
White: PCM 705.6/768(Khz)
Green: PCM 44.1/48/88.2/96(Khz)

Power is Everything

100mW@32Ω 3.5mm SE / 200mW@32Ω 2.5mm Balanced. Strongly drive ability in S9 Pro portable DAC AMP delivers outstanding desktop-class performance. Come on! Don’t miss it!

Cute but Puts Out a Nice High-End Vibe

Items manufactured by CNC integrated molding technology can be called works of art due to the difficulty and high time costs, showing the fine workmanship, stable structure, and pleasing appearance which is incomparable to welded or split products.

Considerate Items for You

Coming with a USB – A adapter, a 10cm Type-C to Type-C cable and a clear detachable back clip.

S9 Pro Specifications

Parameters Dimensions 18 x 59 x 8mm
DAC Chip ES9038Q2M
DSD Native DSD64/128/256/512
PCM Support up to 768kHz/32Bit
Build Quality Aluminum-alloy CNC integration (Black, Silver)
Transmission Interface Type-C
Net Weight 11g
Output Option Compatible with Single Ended 3.5mm and Balanced 2.5mm headphones.
Compatible with earphone with a mic.
Power No need to charge. Plug and Play.
System Function Support: Windows, Mac OS, iPad OS, Android, iOS. Please note: For iOS users, the Lightning OTG cable has to be purchased separately.
Performance Specifications
Single-Ended Headphone Output Rated Output Power L&R 100mW@32Ω
Frequency Response 20-50kHz
Signal-to-Noise Ratio (SNR) 120dB (@32Ω)
Channel Separation 80dB (@32Ω)
Total Harmonic Distortion+Noise 0.0012% (@32Ω)
Balanced Headphone Output Rated Output Power L&R 200mW@32Ω
Frequency Response 20-50kHz
Signal-to-Noise Ratio (SNR) 119dB (@32Ω)
Channel Separation 118dB (@32Ω)
Total Harmonic Distortion+Noise 0.0006% (@32Ω)
Recommended Headphone Impedance Range 8-300Ω
Metal & Color Black, Silver
What’s in the box Type-C to Type-C×1
Type-C to USB-A adapter×1
Rear clip×1
User manual×1
Warranty card×1