소개
This manual provides detailed instructions for the setup, operation, and maintenance of your Daakro ZK-MT21 2.1 Channel Bluetooth Amplifier Board. Designed for DIY audio enthusiasts, this board offers high-fidelity sound with versatile input options and comprehensive protection features. Please read this manual thoroughly before use to ensure proper functionality and longevity of your device.
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- Amp리퍼 보드
- Screwdriver (for wiring connections)
- DC 전원 어댑터 커넥터
- Knobs (5 pieces)
- 장착 하드웨어(나사, 스탠드오프)
Image: The Daakro ZK-MT21 amplifier board and included accessories, including a screwdriver, DC power connector, knobs, and mounting hardware.
주요 특징
- Dual HiFi Chip Technology: Utilizes two HiFi amplifier chips with PurePath technology for ultra-high resolution, ultra-low distortion, and high-fidelity sound.
- 2.1채널 구성: Supports left channel (50W), right channel (50W), and subwoofer output (up to 100W) for an immersive sound experience.
- Dual Audio Input Modes: Features both Bluetooth 5.0 for wireless connectivity and a traditional AUX input for wired audio sources.
- Wide Application Voltage: Compatible with DC 9V to 24V power supplies, suitable for 30-200W, 4-8Ω speakers.
- 종합 보호: 내장형 오버볼륨tage, 언더볼륨tage, over-temperature, short-circuit, and reverse connection protection mechanisms ensure device safety.
설치 지침
Follow these steps to correctly set up your ZK-MT21 amp증폭기 보드:
1. 스피커 연결
- Identify the speaker terminals on the amplifier board. There are terminals for Left (L), Right (R), and Subwoofer (S) channels, each with positive (+) and negative (-) connections.
- Connect your speakers to the corresponding terminals. Ensure correct polarity (positive to positive, negative to negative) for optimal sound quality.
- Use the provided screwdriver to securely fasten the speaker wires into the terminals.
Image: A detailed diagram illustrating the connection points for the subwoofer, right channel, left channel, Bluetooth 5.0 antenna, AUX input, and DC 12-24V power input on the ZK-MT21 amplifier board. Key components like the low noise front stage 운영 amplifier, large-capacity energy storage capacitor, and heat sinks are also labeled.
2. 전원 연결
- Connect a DC power supply (9V-24V) to the DC 12-24V input terminal. The provided DC power adapter connector can be used for this purpose.
- 전원 공급 장치가 볼륨과 일치하는지 확인하십시오.tage requirements of your speakers and the amplifier board for optimal performance.
중요한: Optimal audio output requires the correct combination of adequate audio input with appropriate power supply voltage and current. Different loudspeaker impedances affect relative sound power. A loudspeaker with a higher impedance will produce less relative sound power with sufficient voltage and current. Please be aware of these factors to optimize your audio experience.
3. 오디오 입력
The ZK-MT21 supports two audio input modes:
- 블루투스 5.0 : For wireless connection, ensure the Bluetooth antenna is properly connected (if external).
- 보조 입력: Connect your audio source (e.g., phone, TV, laptop) using a 3.5mm audio cable to the AUX-IN port.
Image: The ZK-MT21 amplifier board with icons representing Bluetooth 5.0 input and 3.5mm AUX input, along with devices like a tablet, mobile phone, and computer, illustrating its versatile connectivity.
4. Attaching Knobs
Gently push the provided knobs onto the control shafts for Subwoofer Frequency, Subwoofer Volume, R&L Treble, R&L Bass, and Main Volume.
Image: The ZK-MT21 amplifier board shown with all five control knobs attached, highlighting the main volume, R&L bass, R&L treble, subwoofer volume, and subwoofer frequency controls.
설정 비디오 가이드
Watch this video for a visual guide on connecting the speakers and power to the amp리퍼 보드.
Video: A demonstration of connecting speaker wires and power to the ZK-MT21 Bluetooth Amplifier Board. It shows how to correctly attach the subwoofer, left, and right channel wires, and then connect the DC power input. The video also briefly shows pairing via Bluetooth.
작동 지침
일단 amplifier board is set up, follow these steps to operate it:
1. 전원 켜기
Flip the power switch to the "ON" position. A blue indicator light will illuminate, indicating the board is powered on.
2. 블루투스 페어링
- Ensure your audio source device (e.g., smartphone) has Bluetooth enabled.
- 검색 사용 가능한 블루투스 장치. amplifier board will appear as "BT SZM" or a similar identifier.
- 페어링할 기기를 선택하세요. 연결되면 무선으로 오디오를 스트리밍할 수 있습니다.
Image: The ZK-MT21 amplifier board wirelessly connected to a smartphone via Bluetooth, demonstrating the range of up to 16.4 feet (5 meters).
3. AUX 입력 사용법
If using the AUX input, simply connect your audio device with a 3.5mm cable. The board will automatically switch to AUX mode if a cable is detected.
4. Adjusting Audio Controls
- 메인 볼륨: 전체 출력 볼륨을 조절합니다.
- R&L 베이스/트레블: Controls the bass and treble levels for the left and right channels.
- Subwoofer Volume/Frequency: Adjusts the subwoofer's volume and crossover frequency.
Experiment with these controls to achieve your desired sound profile.
작동 비디오 가이드
This video demonstrates the operation of the amplifier board, including power-on, Bluetooth pairing, and adjusting the various audio controls.
Video: A demonstration of the ZK-MT21 amplifier board in operation, showing how to power it on, connect a smartphone via Bluetooth, and adjust the main volume, bass, treble, and subwoofer controls while music is playing through connected speakers and a subwoofer.
명세서
| 특징 | 세부 사항 |
|---|---|
| 제품 치수 | 3.54 x 3.54 x 0.91 인치 |
| 무게 | 5.61 온스 |
| 모델 번호 | ZK-MT21 |
| 제조업체 | 다크로 |
| 권tage(공칭) | 12볼트(DC) |
| 최소 공급량tage | 9볼트(DC) |
| 최대 공급량tage | 24볼트(DC) |
| Output Power (R&L Channel) | 50W + 50W (at 4Ω, 24V) |
| 출력 전력(서브우퍼) | 100W (at 4Ω, 24V) |
| 스피커 임피던스 | 4-8Ω |
| 블루투스 버전 | 5.0 |
| 오디오 입력 | Bluetooth, AUX (3.5mm) |
Image: A table detailing the power output of the ZK-MT21 amplifier board based on input voltage and speaker impedance for both R&L channels and the subwoofer output. For example, at 24V with 4Ω speakers, R&L channels output 50W each, and the subwoofer outputs 100W.
문제 해결
If you encounter issues with your ZK-MT21 amplifier board, refer to the following common troubleshooting steps:
- 전원 없음:
- Ensure the power supply is correctly connected and within the 9V-24V DC range.
- 전원 스위치가 "ON" 위치에 있는지 확인하세요.
- 전원 어댑터가 올바르게 작동하는지 확인하세요.
- 사운드 출력 없음:
- Confirm speaker wires are securely connected to the correct terminals with proper polarity.
- Check if the audio source is playing and its volume is turned up.
- 확인하십시오 amplifier's main volume knob is turned up.
- If using Bluetooth, verify the device is successfully paired and connected.
- AUX 케이블을 사용하는 경우 케이블이 완전히 삽입되어 정상적으로 작동하는지 확인하십시오.
- 왜곡된 소리:
- 오디오 소스의 입력 볼륨을 줄이세요.
- 낮추다 amplifier's main volume.
- Check speaker impedance compatibility (4-8Ω).
- 전원 공급이 안정적이고 충분한 전류를 공급하는지 확인하십시오.
- 블루투스 연결 끊김:
- Ensure the audio source device is within the Bluetooth range (up to 16.4 feet/5 meters).
- 블루투스 신호를 방해할 수 있는 장애물을 피하십시오.
- 기기의 페어링을 해제한 후 다시 페어링해 보세요.
유지
To ensure the longevity and optimal performance of your ZK-MT21 amp증폭기 보드의 경우 다음 유지 관리 지침을 따르십시오.
- 청소: Use a soft, dry cloth to wipe the surface of the board. Avoid using liquid cleaners or solvents, as they may damage the components.
- 통풍: 확인하십시오 amplifier board is placed in a well-ventilated area to prevent overheating. Do not block the heat sinks.
- 저장: When not in use for extended periods, store the board in a cool, dry place away from direct sunlight and extreme temperatures.
- 사이: 모든 배선 연결부를 주기적으로 점검하여 안전하고 부식되지 않았는지 확인하세요.
보증 및 지원
Daakro is committed to providing high-quality audio-visual systems. Your ZK-MT21 amplifier board comes with a 30-day warranty. For any questions, technical assistance, or support, please contact our online customer service. We aim for 100% customer satisfaction and are available to assist you within 24 hours.
For more information and to explore other Daakro products, visit the Daakro Store on Amazon.
