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HiFiMAN EF400 User Manual

HiFiMAN EF400
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HIFIMAN EF400
Owner’s Guide
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HiFiMAN EF400 Specifications

General IconGeneral
Frequency Response20 Hz - 20 kHz
TypeDAC/Amp
DAC ChipHIMALAYA R2R
Output Power4.4W per channel (balanced)
InputsUSB-C
Outputs4.4mm Balanced, 6.35mm Single-Ended
Gain LevelsLow, Medium, High
Signal to Noise Ratio118 dB
Supported FormatsPCM
Gain SettingsLow, Medium, High
Power SupplyExternal

Summary

Specifications

EF400 Front Panel Layout

4-level Function Switch

Controls gain and NOS/OS modes for audio output.

6.35mm Single-ended Output

Standard 6.35mm headphone jack for audio output.

3.5mm Single-ended Output

Compact 3.5mm headphone jack for audio output.

4.4mm Balanced Output

4.4mm balanced headphone jack for higher quality audio.

XLR 4-Pin Balanced Output

Professional XLR 4-Pin balanced headphone output connector.

Volume Control

Adjusts the audio output volume level.

EF400 Rear Panel Layout

Balanced Line Outputs

XLR outputs for right and left channel balanced audio.

RCA Line Output

Single-ended RCA line output connectors for audio.

Digital Inputs

USB Type C and USB-B digital audio inputs.

AC Power Connector

Connects the device to the power source and includes the power switch.

EF400 Bottom Panel Layout

Voltage Selector Switch

Selects the local power source voltage (115V/230V).

HIMALAYA DAC Technology

Important Precautions

Power and Connection Safety

Ensure power is off before connecting; re-boot for issues.

Headphone Usage Guidelines

Connect headphones before power on; use low gain for sensitive headphones.

Listening Volume and Environmental Safety

Maintain moderate volume; keep away from children, heat, and chemicals.

HIFIMAN Limited Warranty

Warranty Exclusions and Limitations

Details conditions not covered by the warranty, including misuse and unauthorized modifications.

Customer Support and Warranty Service

Obtaining Warranty Service

Contact dealer or customer service for assistance; return shipping at owner's expense.

Connect with HIFIMAN Online

Links to official Facebook and Twitter pages for updates and engagement.

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