Description
ZK-MT21 50×2+100W Class-D Audio Amplifier Board with Bluetooth 5.0 | High Power Subwoofer & Stereo Class-D Amplifier
Discover crystal-clear sound and powerful bass with the ZK-MT21 Class-D Audio Amplifier Board!
Perfect for DIY audio projects, car audio, or upgrading home speakers, this compact board packs an impressive 100W subwoofer output + 2x50W stereo output, combined with the stability and range of Bluetooth 5.0.
✅ Key Features & Benefits:
🔹 Powerful Output:
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Subwoofer: 💥 100W (mono channel)
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Stereo: 🎶 2 × 50W (left & right channels)
🔹 Bluetooth 5.0:
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Faster connection, stable signal, and longer range for seamless wireless music streaming.
🔹 Class-D Efficiency:
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High efficiency, low heat generation – ideal for compact DIY audio enclosures.
🔹 Multiple Inputs:
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Supports Bluetooth, AUX input, and wired connections for flexible use.
🔹 Bass & Treble Control:
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Adjust the sound to your preference with on-board knobs.
🔹 Compact & Easy to Install:
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Lightweight design fits into tight spaces for car, home, or custom speaker projects.
🔹 Clear Sound Quality:
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Low distortion and noise for pure, powerful audio output.
📊 Technical Specifications:
| Specification | Details |
|---|---|
| Model | ZK-MT21 |
| Amplifier Type | Class-D |
| Output Power | 50W x 2 + 100W |
| Bluetooth Version | 5.0 |
| Channels | 2.1 (stereo L/R + subwoofer) |
| Input Voltage | DC 12V–24V |
| Frequency Response | 20Hz–20kHz |
| Control Knobs | Volume, Bass, Treble, Subwoofer Volume |
| Size (approx.) | Compact – easy to mount |
🛠️ Applications:
✅ DIY Bluetooth home speakers
✅ Car audio systems
✅ Subwoofer builds
✅ Computer & TV external sound systems
✅ Portable party speakers
✅ Upgrade old speakers with wireless streaming
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