Buy the HIFIMAN EF400 DAC/Amp on Apos Audio

The Perfect Companion for Your HIFIMAN Headphones

We’re excited to announce that we’re now selling the HIFIMAN EF400 DAC/Amp on Apos Audio. In 2012, Dr. Fang Bian and his team at HIFIMAN introduced the EF6, the legendary desktop DAC/amplifier that delivers gobs of power and a wide, detailed soundstage. 

Now, HIFIMAN has released the EF400, which incorporates the best of recently developed technologies, especially the company’s advanced HIMALAYA R2R DAC. The EF400 is the modern DAC/amp solution, with a compact footprint and price to match, but with sonics that outperform products many times its size.

Product highlights

  • Himalaya R2R DAC module
  • 4.4W per channel output
  • Oxygen free copper wire wound toroidal transformer
  • 4 headphone outputs
  • 4-level gain function 
  • 30000uf large capacitors

Head on over to the HIFIMAN EF400 DAC/Amp product page for more details, and if you need more information please contact our dedicated Support Team via live chat online or email us at

As with all purchases, when you buy from us you get the Apos Promise for Free Priority Shipping, an Extended 2-Year Warranty, a 45-Day Return Policy, and our 30-Day Lowest Price Match.