Mackie MDB-USB Signal Direct Box Instruction Manual

1. 소개 및 이상view

The Mackie MDB-USB is a bus-powered stereo direct box designed to seamlessly integrate computer audio into analog sound systems. It functions as a high-resolution audio interface, converting digital audio signals into clean, balanced stereo output, free from noise and distortion. This device eliminates the need to rely on a computer's headphone jack for professional audio connections, offering enhanced versatility with features like output level control, a dedicated headphone output, and a mono sum option. The analog outputs are dual XLR with a ground lift switch for optimal signal integrity. A USB cable is included for immediate connectivity.

• Direct USB Connectivity: Connect your computer directly via USB for audio transfer.
• 고해상도 오디오: Supports 24-bit/96kHz audio for pristine sound quality.
• 밸런스드 XLR 출력: Provides professional-grade balanced XLR outputs with ground lift.
• 버스 전원: Operates solely on power supplied by your computer's USB port.

2. 설정 및 연결

Follow these steps to set up your MDB-USB Signal Direct Box:

1. 컴퓨터에 연결: Use the included USB cable to connect the MDB-USB to an available USB port on your computer. The device is bus-powered and does not require an external power supply.
2. 오디오 출력 연결: Connect the dual XLR outputs (Left and Right) of the MDB-USB to the balanced inputs of your mixer, audio interface, or PA system using standard XLR cables.
3. 헤드폰 모니터링: For direct monitoring, connect your headphones to the dedicated headphone output jack on the MDB-USB.
4. 지상 리프트: If you experience hum or ground loop noise, engage the Ground Lift switch located between the XLR outputs. This can help eliminate unwanted noise.
5. 소프트웨어 구성 : On your computer, select the MDB-USB as the audio output device in your operating system's sound settings and your preferred audio software.

3. 사용 설명서

The MDB-USB offers straightforward controls for managing your audio signal:

• 레벨 제어: Adjust the output level of the MDB-USB using the dedicated knob. This controls the signal sent to your mixer or PA system.
• 헤드폰 볼륨: A separate volume control is provided for the headphone output, allowing independent monitoring level adjustment.
• Mono Sum Switch: Engage the Mono Sum switch to combine the left and right stereo signals into a single mono output. This is useful for systems that only support mono input or for checking mono compatibility.
• 그라운드 리프트 스위치: As mentioned in the setup, use this switch to break ground loops and eliminate hum. Toggle it to the position that provides the cleanest audio signal.

For a visual demonstration of the Mackie MDB series, including the MDB-USB, refer to the video below:

4. 유지관리

To ensure the longevity and optimal performance of your Mackie MDB-USB, follow these simple maintenance guidelines:

• 청소: 부드럽고 마른 천으로 제품 외부를 닦아주세요. 연마성 세제, 용제 또는 왁스는 마감재와 내부 부품을 손상시킬 수 있으므로 사용하지 마십시오.
• 저장: When not in use, store the MDB-USB in a cool, dry place, away from direct sunlight and extreme temperatures. Protect it from dust and moisture.
• 손질: Handle the unit with care. While built robustly, dropping or subjecting it to strong impacts can cause damage.
• 케이블 관리 : Ensure all cables connected to the MDB-USB are not excessively bent or strained, which can lead to cable failure or damage to the unit's ports.

5. 문제 해결

If you encounter issues with your MDB-USB, consult the following common troubleshooting tips:

• 오디오 출력 없음:
  • Ensure the MDB-USB is correctly connected to your computer via USB and recognized as an audio device.
  • Verify that the MDB-USB is selected as the output device in your computer's sound settings and your audio software.
  • Check all cable connections (USB, XLR, headphones) for secure fit.
  • Increase the output level on the MDB-USB and the input gain on your mixer/PA system.
• 윙윙거리는 소리 또는 웅웅거리는 소음:
  • Engage the Ground Lift switch on the MDB-USB.
  • Ensure all audio equipment is connected to the same electrical outlet or power conditioner to avoid ground loops.
  • Test with different cables to rule out faulty wiring.
• 왜곡된 오디오:
  • Reduce the output level on the MDB-USB or the input gain on your mixer/PA system to prevent clipping.
  • Check your computer's audio output level to ensure it's not too high.
• 헤드폰이 작동하지 않음:
  • 헤드폰이 헤드폰 잭에 완전히 꽂혀 있는지 확인하십시오.
  • Adjust the headphone volume knob on the MDB-USB.
  • Test with another pair of headphones to confirm they are functional.

6. 사양

7. 보증 및 지원

For warranty information, technical support, or service inquiries, please refer to the official Mackie web사이트를 방문하거나 고객 지원팀에 직접 문의하세요. 보증 청구를 위해 구매 증빙 자료로 구매 영수증을 보관하세요.