Skip to content

HiFiMAN HM-901S High-Fideltiy Portable MP3 Player with Balanced Amp Card




Build-In Memory



Maximum Memory Support



Audio Support

WAV, FLAC, support 16bit and 24bit, 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz ALAC (M4A), AIFF, AAC, APE, support 16bit, 44.1KHz and 48KHz. DSD



DAC Chip: ES9018*2 Op-amp: OPA627*2, OPA2107*2 Replaceable Amp Card Design


Battery Life



Compatible Products

Standard Amp Card Balanced Amp Card IEM Amp Card MINIBOX Amp Card MINIBOX Gold Amp Card


Manufacturer's Description


The Premium Choice - DAC ES9018

The secret to the best-sounding experience possible? Two top-of-the-line DAC chips.

  • ES9018 is currently the most expensive DAC chip available. It took HIFIMAN’s design team an entire year to refine this highly regarded DAC chip by adding an extra oscillator to further upgrade its performance. Their hard work paid off. The final result raises the bar and creates an all new reference.

Commercialized DACs SNR Comparison

Using a pair of ES9018 chips can achieve a wider sound stage by realizing extremely high separation.

Optimized Analog Circuit

HM901s brings balanced, high quality reproduction of live music to the joy of your ear.

  1. The key to the excellent sounding? OPA2107.

Features Advanced Step Potentiometer

The patented step analog volume control is designed for precise control and accurate channel balance. It removes the carbon film that tends to wear out easily. The resistors in both channels of the step potentiometer can be paired to make sure they are 100 % identical. No-gain control circuit delivers performance unmatched by the digital volume chip.

Balanced Output: Perfected Sound Experience

HM901s brings balanced, high quality music reproduction creating joy for your ears. Designed to be adaptive for both balanced and single-ended output, HM901s offers wider balanced output signals with even more powerful resistance to interference. The sound stage and the separation are largely improved.

DSD Support Enhanced

DSD (Direct Stream Digital) files can be enjoyed on your HM901s with high quality playback. HM901s decodes 24-bit 192 kHz high definition music files and offers upsampling to 24/192. Also supports DSD 2.8MHZ file.


Experience state-of-the-art sound quality with time-tested reliability. Newly improved design replaces balance/normal switch with a pair of earphone jack holes, making it easier to use. Contributing to the ease of use is the new TAICHI II UI. Derived from the original HM901 volume control, TAICHI II UI is designed to achieve the most intuitive user interface possible.

Faster power on/off in only three seconds – first anywhere in the industry!


Unlike the single battery design dominant at other portable music players, the HM901s’ exceptional performance comes from the dual-battery solution, delivering +/- 7.4 volts, 2,000mA. Effectively reducing power-supply noise allows you to enjoy more of the music.

Replaceable Amp Card Design

We dream of a world where one design fits all. That is why we choose to use open interface for headphone amplifiers to allow more compatible designs available and a chance for third-party designers to collaborate with HIFIMAN.

All New Sleek Look


- Aluminum alloy modeled and crafted for higher precision and durability

- Processed surface quality of the sapphire substrate for scratch resistance

- Exceptionally durable anti-glare screen

- Newly optimized design with increased shockproof intensity

Replace CD player with Dock

No need to keep your CD/SACD player anymore. No need to sacrifice the details of the music you listen to. No need to compromise with the hustle of changing discs. Make HM901s your personal media player, simply add the dock with remote control, And voilà!


  • Features Advanced Step Potentiometer
  • Balanced Output: Perfected Sound Experience
  • DSD Support Enhanced
  • The New TAICHI II UI
  • Dual-Voltage
  • Replaceable Amp Card Design
  • All New Sleek Look
  • Replace CD player with Dock