הקדמה
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.
וואָס איז אין די קעסטל
ביים עפענען דעם פעקל, זיכער מאכן אז אלע קאמפאנענטן זענען דא:
- Ampליבער באָרד
- Screwdriver (for wiring connections)
- DC מאַכט אַדאַפּטער קאַנעקטאָר
- Knobs (5 pieces)
- מאָנטירונג האַרדווער (שרויף, סטאַנדאָפס)
Image: The Daakro ZK-MT21 amplifier board and included accessories, including a screwdriver, DC power connector, knobs, and mounting hardware.
שליסל פֿעיִקייטן
- Dual HiFi Chip Technology: ניצט צוויי HiFi amplifier chips with PurePath technology for ultra-high resolution, ultra-low distortion, and high-fidelity sound.
- 2.1-Channel Configuration: Supports left channel (50W), right channel (50W), and subwoofer output (up to 100W) for an immersive sound experience.
- צווייענדיקע אַודיאָ אַרייַנגאַנג מאָדעס: 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.
- פולשטענדיק שוץ: געבויט-אין איבער-וואָלtagE, אונטער-וואָלtage, over-temperature, short-circuit, and reverse connection protection mechanisms ensure device safety.
סעטאַפּ אינסטרוקציעס
Follow these steps to correctly set up your ZK-MT21 ampליפער ברעט:
1. רעדנער קאַנעקשאַנז
- 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 אַפּעריישאַנאַל amplifier, large-capacity energy storage capacitor, and heat sinks are also labeled.
2. מאַכט צושטעלן קאַנעקשאַן
- 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.
- פאַרזיכערן די מאַכט צושטעלן שוועבעלעך די וואָלtage requirements of your speakers and the amplifier board for optimal performance.
וויכטיק: 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. אַודיאָ ינפּוט
The ZK-MT21 supports two audio input modes:
- בלועטאָאָטה 5.0: For wireless connection, ensure the Bluetooth antenna is properly connected (if external).
- AUX אַרייַנשרייַב: 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.
סעטאַפּ ווידעא גייד
Watch this video for a visual guide on connecting the speakers and power to the ampליפיער ברעט.
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.
אַפּערייטינג ינסטראַקשאַנז
אַמאָל די amplifier board is set up, follow these steps to operate it:
1. מאַכט אויף
Flip the power switch to the "ON" position. A blue indicator light will illuminate, indicating the board is powered on.
2. בלועטאָאָטה פּערינג
- Ensure your audio source device (e.g., smartphone) has Bluetooth enabled.
- זוכן פֿאַר פֿאַראַן בלועטוט דעוויסעס. די amplifier board will appear as "BT SZM" or a similar identifier.
- אויסקלייבן דעם דעווייס צו פארבינדן. אַמאָל פארבונדן, קענט איר סטרימען אַודיאָ אָן דראָטן.
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 Input Usage
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
- הויפּט באַנד: אַדזשאַסטירט די אַלגעמיינע אַרויסגאַנג באַנד.
- R&L Bass/Treble: 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.
אָפּעראַציע ווידעא גייד
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.
ספּעסאַפאַקיישאַנז
| שטריך | דעטאַל |
|---|---|
| פּראָדוקט דימענשאַנז | 3.54 X 3.54 X 0.91 אינטשעס |
| וואָג | 5.61 אונסעס |
| מאָדעל נומער | ZK-MT21 |
| פאַבריקאַנט | Daakro |
| Voltage (נאָמינאַל) | 12 וואלטס (דק) |
| מינימום צושטעלן וואָלtage | 9 וואלטס (דק) |
| מאַקסימום צושטעלן וואָלtage | 24 וואלטס (דק) |
| Output Power (R&L Channel) | 50W + 50W (at 4Ω, 24V) |
| אַרויסגאַנג מאַכט (סאַבוואָאָפער) | 100W (at 4Ω, 24V) |
| רעדנער ימפּידאַנס | 4-8Ω |
| בלועטאָאָטה ווערסיע | 5.0 |
| אַודיאָ ינפּוץ | בלועטוט, אוקס (3.5 מ״מ) |
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.
טראָובלעשאָאָטינג
If you encounter issues with your ZK-MT21 amplifier board, refer to the following common troubleshooting steps:
- קיין מאַכט:
- Ensure the power supply is correctly connected and within the 9V-24V DC range.
- קאָנטראָלירט צי דער מאַכט קנעפּל איז אין דער "ON" פּאָזיציע.
- באַשטעטיקן אַז דער מאַכט אַדאַפּטער אַרבעט ריכטיק.
- קיין סאָונד רעזולטאַט:
- 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.
- פאַרזיכערן די amplifier's main volume knob is turned up.
- If using Bluetooth, verify the device is successfully paired and connected.
- אויב איר ניצט AUX, זאָרגט אַז דער קאַבל איז גאָר אַרײַנגעשטעקט און אַרבעט.
- פאַרקרימט סאָונד:
- Reduce the input volume from your audio source.
- נידעריקער די amplifier's main volume.
- Check speaker impedance compatibility (4-8Ω).
- זיכער מאַכן אַז די מאַכט צושטעל איז סטאַביל און גיט גענוג קראַנט.
- בלועטאָאָטה דיסקאַנעקשאַן:
- Ensure the audio source device is within the Bluetooth range (up to 16.4 feet/5 meters).
- Avoid obstacles that may interfere with the Bluetooth signal.
- פּרוּווט אָפּצופּאַרן און ווידער צופּאַרן דעם דעווייס.
וישאַלט
To ensure the longevity and optimal performance of your ZK-MT21 ampליפיער ברעט, פאלגט די אויפהאלטונג גיידליינז:
- רייניקונג: Use a soft, dry cloth to wipe the surface of the board. Avoid using liquid cleaners or solvents, as they may damage the components.
- ווענטילאַטיאָן: פאַרזיכערן די amplifier board is placed in a well-ventilated area to prevent overheating. Do not block the heat sinks.
- סטאָרידזש: When not in use for extended periods, store the board in a cool, dry place away from direct sunlight and extreme temperatures.
- פֿאַרבינדונגען: קאָנטראָלירט פּעריִאָדיש אַלע וויירינג פֿאַרבינדונגען צו זיכער מאַכן אַז זיי זענען זיכער און פֿרײַ פֿון קעראָוזשאַן.
וואָראַנטי און שטיצן
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.
