1. Ifihan
The HIFIMAN EF600 is a high-performance desktop balanced headphone DAC (Digital-to-Analog Converter) and amplifier. It integrates HIFIMAN's HYMALAYA PRO R2R DAC technology with a powerful headphone amplifier, offering versatile connectivity options including XLR, RCA, 6.35mm outputs, and high-resolution Bluetooth audio. Designed for home audio environments, the EF600 also functions as a headphone stand, combining functionality with a distinctive aesthetic.

olusin 1.1: Iwaju view of the HIFIMAN EF600 unit.
2. Alaye Aabo
- Ka gbogbo awọn ilana ṣaaju ṣiṣe ẹrọ naa.
- Jeki ẹrọ naa kuro ni omi, ọrinrin, ati awọn iwọn otutu to gaju.
- Ma ṣe gbiyanju lati tu tabi tun ẹya ara rẹ ṣe. Tọkasi gbogbo iṣẹ si oṣiṣẹ oṣiṣẹ.
- Rii daju pe fentilesonu to dara ni ayika ẹyọ naa lati ṣe idiwọ igbona.
- Lo ipese agbara ti a ti sọ pato ati awọn kebulu.
- Adjust volume levels responsibly to protect your hearing.
3. Package Awọn akoonu
Jẹrisi pe gbogbo awọn ohun kan wa ninu package:
- HIFIMAN EF600 Unit
- Okun agbara
- USB Cable (Type-A to Type-B or Type-C)
- Afowoyi Olumulo (iwe-ipamọ yii)
4. Awọn ẹya Ọja
- HYMALAYA PRO R2R DAC: Features advanced R2R DAC technology for low distortion, low noise, and efficient power consumption.
- Powerful Balanced Output: Delivers 5.12W per channel, suitable for driving a wide range of headphones.
- Apẹrẹ Ooru Imudara: Engineered with a tower case design for convection cooling, placing the center of gravity at the bottom and cooling at the top for stable operation.
- Asopọmọra Wapọ: Includes USB-B, USB-C, Coaxial, RCA, and Balanced XLR inputs, along with XLR 4-pin balanced and 6.35mm single-ended headphone outputs, and XLR balanced/RCA single-ended line outputs.
- High-Resolution Bluetooth: Supports multiple Bluetooth codecs, including aptX-HD, for high-fidelity wireless audio streaming.
- Integrated Headphone Stand: The unit's design allows it to function as a convenient headphone stand.

Figure 4.1: Internal design and thermal management of the EF600.
5. Awọn iṣakoso ati Awọn isopọ
5.1 Igbimọ iwaju

Figure 5.1: Front panel controls and indicators.
- Gain/OS Indicators: Display current gain mode (High/Low) and Oversampling (OS) or Non-Oversampling (NOS) status.
- Awọn afihan igbewọle: Show the active input source (USB/Coaxial, Bluetooth, RCA, Balanced In).
- Input Selectors (Left/Right): Buttons to cycle through available input sources.
- Iṣakoso iwọn didun: Rotary knob to adjust output volume.
- XLR 4-Pin Balanced Headphone Output: For balanced headphones.
- 6.35mm Single-ended Headphone Output: For single-ended headphones.
5.2 ru Panel

olusin 5.2: Ru nronu awọn isopọ.
- Eriali Bluetooth: Fun asopọ Bluetooth alailowaya.
- Ìbánisọ̀rọ̀ USB-B: Connect to a computer or other USB audio source.
- Iru-C Iṣawọle: Connect to devices with USB-C output.
- Iṣawọle Coaxial: Ìbáṣepọ̀ ohùn oní-nọ́ńbà.
- XLR Balanced Input (L/R): Analog balanced audio input.
- RCA Single-ended Input (L/R): Analog single-ended audio input.
- XLR Balanced Output (L/R): Analog balanced line output to external amplifiers tabi ti nṣiṣe lọwọ agbohunsoke.
- Asopọ Agbara: Fún síso okùn agbára AC pọ̀.
- Agbara Yi pada: Lati tan-an tabi paa kuro.

Àwòrán 5.3: Pánẹ́lì iwájú àti ẹ̀yìn lóríview with OS compatibility notes.
6. Eto
6.1 Ibi
Place the EF600 on a stable, flat surface. Ensure adequate space around the unit for proper ventilation, especially at the top, to facilitate convection cooling. The unit's design allows it to serve as a headphone stand, providing a convenient storage solution for your headphones.

Figure 6.1: EF600 used as a headphone stand.
6.2 Asopọ agbara
- Before connecting the power cable, locate the AC 115V/230V voltage selector yipada lori ru nronu.
- Ensure the switch is set to the correct voltage for your region (e.g., AC 115 for North America, AC 230 for Europe).
- Connect the provided power cable to the power connector on the rear panel and then to a suitable AC power outlet.

Nọmba 6.2: AC Voltage Selector.
6.3 Nsopọ Awọn orisun ohun
The EF600 offers multiple input options:
- USB-B / USB-C: Connect your computer, smartphone, or other digital audio source using a compatible USB cable. For Windows 10 and earlier operating systems, additional drivers may be required.
- Coaxial: Connect digital audio sources such as CD players or media streamers via a coaxial cable.
- RCA Single-ended Input: Connect analog audio sources like preampalifiers tabi phono stages using RCA cables.
- XLR Balanced Input: For high-quality analog balanced audio input from compatible sources.
6.4 Connecting Headphones or External Ampalifiers
The EF600 provides several output options:
- XLR 4-Pin Balanced Headphone Output: For headphones equipped with a 4-pin XLR balanced connector.
- 6.35mm Single-ended Headphone Output: For headphones with a standard 6.35mm (1/4 inch) single-ended connector.
- XLR Balanced Output (L/R): To connect the EF600's DAC output to an external balanced amplifier tabi ti nṣiṣe lọwọ agbohunsoke.
- RCA Single-ended Output (L/R): To connect the EF600's DAC output to an external single-ended amplifier tabi ti nṣiṣe lọwọ agbohunsoke.
7. Isẹ
7.1 Agbara Tan / Pa
Flip the power switch on the rear panel to the 'ON' position to power on the unit. Flip it to 'OFF' to power down.
7.2 Aṣayan titẹ sii
Use the Left and Right Input Selector buttons on the front panel to cycle through the available input sources (USB/Coaxial, Bluetooth, RCA, Balanced In). The active input will be indicated by the corresponding LED on the front panel.
7.3 Gain Settings
The EF600 features different gain modes (High Gain, Low Gain) and Oversampling (OS) or Non-Oversampling (NOS) modes. These settings can be selected via the input selector buttons, and their status is indicated by the LEDs on the front panel. Experiment with these settings to find the optimal sound for your headphones and preferences.
7.4 Iṣakoso iwọn didun
Rotate the large volume knob on the front panel to adjust the output level of the connected headphones or line outputs. Start with a low volume and gradually increase it to a comfortable listening level.
7.5 Sisopọ Bluetooth
- Ensure the Bluetooth antenna is securely attached to the rear panel.
- Select Bluetooth as the input source using the front panel input selector. The Bluetooth indicator LED will illuminate.
- On your source device (e.g., smartphone, tablet), enable Bluetooth and search for available devices.
- Select 'HIFIMAN EF600' from the list of devices to pair.
- Once paired, the Bluetooth indicator LED on the EF600 may change status (e.g., solid light) to confirm connection.
- The EF600 supports various Bluetooth codecs, including aptX-HD, for high-quality wireless audio.

Figure 7.1: Supported Bluetooth codecs.
8. Itọju
- Ninu: Use a soft, dry cloth to clean the exterior of the unit. Avoid using liquid cleaners or solvents.
- Afẹfẹ: Ensure that the ventilation openings are not blocked by dust or debris. Periodically clean them with a soft brush or compressed air.
- Ibi ipamọ: Ti o ba tọju ẹyọ naa fun akoko ti o gbooro sii, ge asopọ kuro ni agbara ki o tọju rẹ si ibi ti o tutu, ti o gbẹ.
9. Laasigbotitusita
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ko si agbara | Kò sí okùn agbára tí a so pọ̀; Agbára tí a ti pa; Ìwọ̀n tí kò tọ́tage selector setting. | Ensure power cable is securely connected. Turn power switch ON. Verify AC voltage selector is set correctly for your region. |
| Ko si ohun lati olokun | Incorrect input selected; Volume too low; Headphones not properly connected; Faulty headphones. | Select the correct input source. Increase volume. Ensure headphones are fully plugged in. Test with another pair of headphones. |
| Sisopọ Bluetooth kuna | Bluetooth not selected as input; Device too far; Interference; EF600 already paired to another device. | Select Bluetooth input. Move source device closer. Ensure no metal objects are near the EF600's antenna. Disconnect from other devices. |
| Iyipada ohun | Source audio quality; Incorrect gain setting; Volume too high; Faulty cable. | Check source audio quality. Adjust gain settings. Reduce volume. Try a different cable. |
| USB input not recognized | Incorrect USB cable; Driver issue (Windows); USB input not selected. | Try a different USB cable. Install necessary drivers for your operating system (if applicable). Select USB input. |
10. Awọn pato
| Ẹya ara ẹrọ | Sipesifikesonu |
|---|---|
| Orukọ awoṣe | EF600 |
| Asopọmọra Technology | Ti firanṣẹ, Ailokun (Bluetooth) |
| Imọ-ẹrọ Ibaraẹnisọrọ Alailowaya | Bluetooth (supports aptX-HD, LDAC, AAC, SBC) |
| Awọn agbekọri Jack | 6.35 mm, XLR 4-pin |
| Agbara Ijade | 5.12W per channel (Balanced) |
| Iwọn Igbohunsafẹfẹ | 20 Hz - 20,000 Hz |
| Ipalara | 32 Ohm (typical headphone impedance) |
| Ohun elo | Irin |
| Ọja Mefa | 4.09 x 6.5 x 11.14 inches (104 x 165 x 283 mm) |
| Iwọn Nkan | 6.34 iwon (2.88 kilo) |
| Olupese | HIFIMAN |

Ṣe nọmba 10.1: Awọn Iwọn Ọja.
11. Atilẹyin ọja ati Support
HIFIMAN products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the official HIFIMAN webojula tabi kan si wọn onibara iṣẹ taara. Jeki ẹri rira rẹ fun awọn iṣeduro atilẹyin ọja.





