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The HiFiMan EF400 Headphone DAC & Amplifier is a high-performance audio solution crafted for serious audiophiles and headphone enthusiasts. Equipped with a high-resolution R2R DAC and a powerful amplifier, the EF400 brings pristine sound quality to your headphones. This all-in-one unit is designed to reveal intricate details and deliver immersive soundscapes, making it ideal for both home and professional listening setups. With multiple gain modes and balanced outputs, the EF400 delivers precise and dynamic sound reproduction to meet the demands of discerning listeners.

Key Features

  • R2R DAC Architecture: High-resolution DAC technology for natural and lifelike sound reproduction.
  • Powerful Amplifier: Drives even high-impedance headphones with ease, offering ample power and headroom.
  • Four Gain Modes: Customizable gain settings provide optimized sound output across various headphones.
  • Balanced and Unbalanced Outputs: Offers 4.4mm balanced and 6.35mm single-ended outputs for versatile connectivity.
  • Compact, Elegant Design: Sleek and durable aluminum chassis that fits seamlessly in any setup.
  • Plug-and-Play USB-C Connection: Simple connectivity to your digital sources for hassle-free operation.

Why Buy

The HiFiMan EF400 combines high-end DAC performance with robust amplification, ensuring a refined and immersive listening experience for audiophiles. It’s perfect for anyone looking to elevate their headphone setup with superior audio clarity and precision.

  • Enhanced Audio Quality: Experience high-fidelity sound with natural detail and dynamic range.
  • Versatile Connectivity: Supports both balanced and unbalanced outputs, suitable for various headphones.
  • Built for Audiophiles: Robust power, advanced DAC, and versatile gain modes for top-notch performance.

Product Specifications

HiFiMan EF400 Desktop Balanced DAC & Headphone Amp - Himalaya R2R, Multiple Outputs Specifications
Brand HiFiMan
Model EF400
Type Desktop Balanced DAC & Headphone Amplifier
Input Options USB Type-C, Coaxial, Optical, RCA Line-in
Output Options 3.5mm Headphone Jack, 4.4mm Balanced Output, XLR Balanced Output, RCA Line-out
Power Output Up to 6W (at 32Ω, balanced)
Amplifier Type Class A Amplification (for headphone output)
DAC Chip HiFiMan Himalaya R2R (Resistor Ladder DAC)
Supported Audio Formats MP3, AAC, FLAC, ALAC, DSD, MQA
Signal-to-Noise Ratio (SNR) 130dB
Total Harmonic Distortion (THD) 0.0002%
Dimensions 230mm x 240mm x 60mm
Weight 2.5kg
Compatible Headphones 32Ω to 600Ω (ideal for high-impedance headphones)
Operating Systems Supported Windows, macOS, Linux, Android
Noise Cancellation No
Customizable EQ Yes (via HiFiMan’s proprietary software)
Warranty 1 Year

HiFiMan EF400 Desktop Balanced DAC & Headphone Amp - Himalaya R2R, Multiple Outputs FAQs

What types of headphones are compatible with the HiFiMan EF400?

The HiFiMan EF400 is compatible with a wide range of headphones, including both high-sensitivity in-ear monitors (IEMs) and power-demanding over-ear headphones. It offers multiple output options—3.5mm single-ended, 4.4mm balanced, 6.35mm single-ended, and 4-pin XLR balanced—to accommodate various headphone connections. For high-sensitivity IEMs, it's recommended to use the low-gain mode to prevent excessive power output.

Does the HiFiMan EF400 support both NOS (Non-OverSampling) and OS (OverSampling) modes?

Yes, the HiFiMan EF400 supports both NOS and OS modes. Users can switch between these modes to tailor the sound to their preferences. According to HiFiMan, the OS mode typically sounds natural, while the NOS mode offers a balanced and neutral presentation.

Is the HiFiMan EF400 suitable for driving power-hungry headphones?