KGUSS DAC-K3 PRO USB DAC Headphone AmpHướng dẫn sử dụng lifier

1. Sản phẩm hếtview

The KGUSS DAC-K3 PRO is a versatile audio device functioning as both a professional headphone amplifier and a pre-amplifier. It is designed to enhance audio quality from various digital sources, delivering clear and powerful sound. Its compact design makes it suitable for desktop use.

Mặt trước và mặt bên view of the KGUSS DAC-K3 PRO, showing its compact dimensions (149mm L x 98mm W x 33mm H).

2. Nội dung gói hàng

Upon unboxing your KGUSS DAC-K3 PRO, please verify that all the following items are included:

• DAC-K3 PRO host x1
• Hướng dẫn sử dụng (x1)
• Power adapter 12V1.5A x1
• Giấy chứng nhận hợp quy x1
• Cáp USB x1

3. Product Features and Layout

3.1 Bảng điều khiển phía trước

Cận cảnh view of the KGUSS DAC-K3 PRO front panel, highlighting the input signal indicator lights, PWR/SELECT button, 3.5mm and 6.35mm headphone outputs, and volume control knob.

• Input Signal Indicator Lights: Indicate the currently selected input (COA, OPT, USB).
• PWR/SELECT Button: Short press to cycle through input sources. Long press to power the unit on or off.
• Headphone Output Interfaces: Includes both 3.5mm and 6.35mm jacks for headphone connection.
• Núm điều chỉnh âm lượng: Turn clockwise to increase volume, counter-clockwise to decrease. Tap once to mute/unmute. This knob controls both RCA output and headphone output volume.

3.2 Bảng điều khiển phía sau

Rear panel connections of the KGUSS DAC-K3 PRO, including PC-USB input, Optical input, Coaxial input, RCA line outputs (L/R), and DC 12V power interface.

• PC-USB VÀO: Connects to a computer or compatible mobile phone for digital audio input.
• OPTICAL (Audio In): Connects to devices with optical audio output (e.g., TV set-top boxes, DVD players).
• COAXIAL (Audio In): Connects to devices with coaxial audio output (e.g., TV set-top boxes, DVD players).
• AUDIO OUT (RCA L/R): Line level RCA outputs for connecting to power ampngười nói nhiều hoặc người nói tích cực.
• DC 12V Power Interface: Connect the provided 12V 1.5A power adapter. Ensure correct polarity (outer negative, inner positive) and use the matching power supply to avoid noise.

3.3 Các thành phần nội bộ chính

The DAC-K3 PRO utilizes high-performance chips for superior audio processing:

• TPA6120A2: A high-fidelity audio power amplifier chip based on current feedback architecture, known for low distortion.
• LME49720AN: An operational amplifier providing balanced sound, excellent dynamics, and a broad soundstage.
• ES9018K2M: A DAC decoder chip that contributes to realistic sound, high index, and strong sound plasticity.
• SA9123L & NE5532: Additional components supporting USB audio and general ampsự hóa lỏng.

TPA6120A2 Chip

LME49720AN Chip

ES9018K2M Chip

4. Hướng dẫn thiết lập

Follow these steps to set up your DAC-K3 PRO:

1. Kết nối nguồn điện: Connect the provided 12V 1.5A power adapter to the DC 12V input on the rear panel, then plug it into a power outlet.
2. Kết nối nguồn đầu vào: Choose your desired audio input:
   • For PC-USB: Connect the USB cable from your computer to the PC-USB IN port.
   • For Optical: Connect an optical cable from your source device to the OPTICAL IN port.
   • For Coaxial: Connect a coaxial cable from your source device to the COAXIAL IN port.
3. Kết nối đầu ra:
   • For Headphones: Plug your headphones into either the 3.5mm or 6.35mm jack on the front panel.
   • For Pre-amplifier Use: Connect RCA cables from the AUDIO OUT (RCA L/R) ports on the rear panel to your power amploa tích cực hoặc loa hoạt động.
4. Bật nguồn: Long press the PWR/SELECT button on the front panel to turn on the unit.

5. Hướng dẫn vận hành

5.1 Lựa chọn đầu vào

Nhấn nhanh vào PWR/SELECT button on the front panel to cycle through the available input sources: Coaxial (COA), Optical (OPT), and USB. The corresponding indicator light will illuminate to show the active input.

5.2 Điều khiển âm lượng và tắt tiếng

Rotate the large knob on the right side of the front panel to adjust the volume. Turn clockwise to increase volume and counter-clockwise to decrease. Tap the knob once to mute or unmute the audio output.

5.3 HPA/PRE Automatic Switching

The KGUSS DAC-K3 PRO functioning as a headphone amplifier, with headphones connected to the front panel output.

The DAC-K3 PRO features automatic switching between headphone amplifier (HPA) and pre-amplifier (PRE) modes:

• When no headphones are connected to the 3.5mm or 6.35mm output jacks, the unit automatically operates in pre-ampchế độ tăng cường. Các amplified signal is output from the RCA ports on the rear panel.
• When headphones are connected to either the 3.5mm or 6.35mm output jacks, the DAC-K3 PRO automatically switches to headphone amplifier mode. In this mode, the audio signal is routed exclusively to the headphone jacks, and the RCA outputs are muted.

6. Ứng dụng

The KGUSS DAC-K3 PRO can be integrated into various audio setups:

Diagram illustrating various application scenarios for the KGUSS DAC-K3 PRO, including connections to PCs, phones, set-top boxes, and audio output to active speakers or ampngười nói dối.

• Desktop Audio System: Connect your PC or Mac via USB for high-quality audio playback through headphones or active speakers.
• Tích hợp rạp hát tại nhà: Use optical or coaxial inputs to connect to TV set-top boxes, CD/DVD players, or gaming consoles, outputting to an amplifier and passive speakers or directly to active speakers.
• Mobile Device Enhancement: Connect compatible mobile phones via USB for improved audio output to headphones.

7. Thông số kỹ thuật

Technical specifications for the KGUSS DAC-K3 PRO:

Table displaying the technical specifications and product parameters of the KGUSS DAC-K3 PRO.

KHAI THÁC. Xử lý sự cố

If you encounter any issues with your DAC-K3 PRO, please consider the following common troubleshooting steps:

• Không có điện: Ensure the power adapter is securely connected to both the unit and a working power outlet. Verify the power button is long-pressed to turn on the device.
• Không có âm thanh:
  • Check that the correct input source is selected using the PWR/SELECT button.
  • Verify all audio cables (USB, optical, coaxial, RCA) are securely connected.
  • Ensure the volume knob is not muted and is turned up to an audible level.
  • If using PC-USB, ensure the correct audio output device is selected in your computer's sound settings. Drivers may need to be installed manually on some PCs; contact customer service if needed.
  • If using RCA output, ensure your connected ampBộ khuếch đại hoặc loa chủ động đã được bật nguồn và thiết lập đúng đầu vào.
• Âm thanh bị méo:
  • Check cable connections for any loose contacts.
  • Ensure the input source volume is not excessively high, causing clipping.
  • Verify that the power adapter is the correct type (12V 1.5A) and free from interference.
• Kết nối không liên tục: Check all cable connections, especially USB, optical, and coaxial, for secure fit. Try using different cables if possible.

For further assistance, please refer to the contact information provided in the warranty section.

9. Bảo hành và Hỗ trợ

The KGUSS DAC-K3 PRO comes with a 1-YEAR warranty. For any warranty claims, technical support, or product inquiries, please contact our customer service. Details can be found on the quality warranty card included in your package or by visiting the official KGUSS webđịa điểm.

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