You’re not just listening to music. You’re feeling every layer of it.

The HIFIMAN EF-400 is designed to unlock the emotion in your music with HIFIMAN’s proprietary Himalaya R2R DAC and fully balanced amplification. Whether you're using planar magnetics, dynamic drivers, or IEMs, this desktop amp delivers dynamic punch with tonal smoothness.

Perfect for headphone lovers who don’t want to compromise — ever. This display unit includes original packaging with all accessories.

Installation: Optional white-glove setup available within NJ/NY area (call for price depending on location)
Shipping: Free Local pickup or UPS Ground (call for price depending on location)
Returns: Final sale (Display Model) – tested and guaranteed functional

HIFIMAN EF-400 DAC & Headphone Amplifier (Display Model)

$529.00

$269.00

THD+N (Line out) : Between 0.002% and 0.004%

Channel Separation : 125+/-3dB

Signal to Noise Ratio : 118+/-3dB (A Weighted)

Maximum Power Output : 4.4 W per channel

Dimensions : 246.5mm(L)×228mm(W)×61mm(H)

Weight : 3.08kg

Himalaya Ladder DAC (R2R architecture)

Balanced and single-ended headphone outputs

Power Output: Up to 4.4W @ 16Ω

Inputs: USB-C, Coaxial, Optical

Weight: 3.1kg

Condition: Display Model – includes original box, packing materials.

HIFIMAN EF-400 DAC & Headphone Amplifier (Display Model)

Specs