The Premium Choice Chip
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.
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.
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.