Hifiman
HIFIMAN EF400 Amplifier and DAC
Best desktop DAC and amplifier for discerning audiophiles seeking balanced sound.
Experience superior audio with the HIFIMAN EF400, a desktop DAC/Amplifier designed for audiophiles. It integrates the advanced HIMALAYA R2R DAC and a high-current amplifier for powerful, detailed sound. The EF400 boasts a fully balanced output and multiple headphone jacks, ensuring a premium listening experience. Its compact, modern design fits seamlessly into any desktop setup, offering versatile connectivity options for your audio needs. Elevate your sound with this sophisticated and capable audio solution.
$529.00
Owner Satisfaction
4.5
/ 5
Category Rank
410
/ 807
#410 in Headphone Amplifiers
Price vs Category Average
-62%
Below average
Who it's for
- Audiophiles seeking natural, organic, and highly detailed sound signatures
- Owners of power-hungry planar magnetic headphones needing extra drive
- Listeners prioritizing clean signals and balanced connectivity for high-fidelity gear
Who should skip it
- Users with limited desk space or poor ventilation for electronics
- Multidevice users requiring multiple digital or analog input options
- Desktop listeners wanting to connect active speakers to their system
Performance breakdown
DAC Fidelity
The HIMALAYA R2R architecture delivers exceptionally natural and organic sound reproduction.
Amplification Power
Robust output easily drives demanding planar magnetic headphones with effortless authority.
Connectivity Versatility
Comprehensive input and output options accommodate almost any desktop audio configuration.
Build Integrity
Heavy-duty construction and high-quality internal components ensure long-term desktop reliability.
Gain Flexibility
Four-level switching provides precise volume control across varied headphone sensitivity levels.
Desktop Footprint
Compact enough for crowded desks while maintaining a substantial, premium feel.
Key Specs
HIMALAYA R2R DAC module
Oxygen-free copper toroidal transformer
High current amplifier circuit
Large 30000uf capacitors
Fully differential four-channel circuit
Maximum output
10.7 Vrms (THD <1%) into a 36-ohm load
Signal-to-noise ratio
118+/-3dB (A-weighted)
THD+N (line out)
0.002% to 0.004%
Features
- Advanced HIMALAYA R2R DAC technology
- High-current amplifier for robust performance
- Fully balanced output for superior fidelity
- Multiple headphone output options
- Versatile USB-C and USB-B input
- 4-level gain switch for optimization
- Compact and modern desktop design
- RCA and Balanced Line Outputs
What customers say
Customers consistently praise the HIFIMAN EF400 for its exceptional sound quality, particularly highlighting its detailed and natural audio reproduction. Many find its R2R DAC implementation delivers a rich, engaging listening experience that elevates their music. A significant theme is its outstanding value, with users often noting that the EF400 performs well above its price point. It is frequently recommended for its ability to drive a wide range of headphones with authority, making it a compelling choice for audiophiles seeking premium sound without a premium cost.
Know before you buy
The HIMALAYA R2R DAC module is designed to provide a more natural, musical, and detailed sound profile compared to standard delta-sigma chips. It achieves this by using a discrete resistor ladder architecture, which reduces digital artifacts and results in a smoother, more analog-like listening experience.
Yes, the EF400 is highly versatile. It features four headphone outputs: 4.4mm balanced, 4-pin XLR balanced, 6.35mm single-ended, and 3.5mm single-ended, allowing you to connect almost any pair of headphones without needing adapters.
The gain switch allows you to toggle between High and Low gain, as well as NOS (Non-Oversampling) and OS (Oversampling) modes. NOS mode provides a raw, direct signal path, while OS mode uses digital filtering to smooth out the audio, letting you tailor the sound signature to your specific headphones and personal preference.
With a maximum output of 4.4W per channel and a high-current amplifier circuit, the EF400 is capable of driving most power-hungry planar magnetic and high-impedance dynamic headphones with ease and authority.
Yes, the unit includes both RCA single-ended and balanced line outputs on the rear panel. This allows you to use the EF400 as a dedicated DAC/preamp for an external speaker setup or a more powerful dedicated power amplifier.
The EF400 is designed for plug-and-play functionality via its USB-C or USB-B inputs. Most modern operating systems will recognize the device immediately, though you should ensure your computer's audio settings are configured to output to the HIFIMAN device for the best performance.
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$529