Superb Resolution and Sound Quality
We endeavor to deliver state-of-the-art technology, keeping only what is essential to improve sound quality and reliability. HM901s brings balanced, high-quality music reproduction creating joy for your ears.
The Premium Choice DAC ES9018 x 2
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.
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.
HIFIMAN Redefines Elegance.
The new TAICHI II UI is simplified, elegant and high in performance. Faster power on/off in only three seconds - first seen in the industry!
Newly-improved Thumbwheel Design
Ergonomic, manually adjustable thumbwheel design allows easy and precise control.
Supports a Wide Array of Audio Formats
HM901s plays 24-bit 192 kHz high definition music files and offers upsampling to 24/192. It decodes DSD and makes it possible to enjoy SACD music. APE, WMA, FLAC, OGG, WAV. Also supports DSD 2.8MHz file.
Duo-Battery Solution for Doubly Divine Sound
Unlike the single battery design dominant at other portable music players, the HM901s'
exceptional performance comes from the duo-battery solution, delivering +/- 7.4 volts, 2,000mA. Highly effective at reducing power-supply noise allowing you to enjoy more of the music.
Uncompromised Sound Quality
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 percent identical. No-gain control circuit delivers performance unpaired by the digital volume chip.
Digital volume control chips with no abatement from digital high frequency noise can result in poor sound quality. HM901s can adapt to most earphones and headphones in the market by changing the amp module.
Changeable Amplifier Card
HM901s is compatible to most earphones and headphones in the market by simply changing the amp module.
We dream of a world where one design fits for 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.
Replace CD Player with the 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 voila!
- DAC chip: ES9018x2
- Op-amp: OPA627x2, OPA2107x2
- Frequency response: 20HZ - 20KHz
- THD: 0.008 percent (Line out)
- S/N: 106 +/- 4DB
- SD card memory: up to 256GB
- Battery: Li-ion +7.4V 1600 mAh, -7.4V 500mAh
- Battery life: 9 hours
- Supported music formats: MP3, AAC, WMA, OGG, APE, WAV FLAC, AIFF, ALAC (M4A), DSD