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ZK-MT21 2*50W+100W Bluetooth 5.0 Power Subwoofer Amplifier Board 2.1 Channel Class D Home Theater Audio Stereo Equalizer Amp
$78.43
Free standard delivery on orders over $100
Description
This ZK‑MT21 Bluetooth 5.0 2.1‑channel Class D amplifier board delivers 50 W ×2 for stereo channels and 100 W for a subwoofer. It supports both Bluetooth 5.0 connectivity (up to ~15 m/49 ft unobstructed) and traditional AUX (3.5 mm) input. Treble and bass controls enable fine sound tuning, while an oversized heatsink ensures reliable thermal performance under load. Protection features include reverse‑polarity, short‑circuit, over‑current, and over‑temperature safeguards
Specifications
| Feature | Description |
|---|---|
| Model | ZK‑MT21 |
| Brand | Creadvent (derived from similar modules) |
| Channel Mode | 2.1 stereo |
| Output Power | 50 W ×2 (L/R), 100 W (Subwoofer) |
| Bluetooth Version | Bluetooth 5.0 (~15 m range, no obstruction) |
| AUX Input | 3.5 mm line‑in (500 mV sensitivity typical) |
| Supply Voltage Range | DC 12–24 V (recommended ≥ 5 A at 12–24 V) |
| Speaker Impedance | 4–8 Ω (stereo channels), 4–8 Ω (subwoofer) |
| Audio Input Priority | Bluetooth overrides AUX if both active |
| Tone Controls | Independent treble, bass, main volume |
| Protection Mechanisms | Reverse‑connect, short‑circuit, overcurrent, overheating |
| Cooling | Large aluminum heat‑sink |
| Output Connectors | Screw terminal blocks for L/R and subwoofer |
| Power Connector | Standard DC barrel jack (5.5×2.1 mm) |
| Approx. Board Size / Weight | ~5.2 × 4.4 × 2.1 inches, ~4–6 oz |
| Included in Package | Amplifier board, acrylic shell/separator(s), volume knob(s), screwdriver, DC adapter plug (depending on vendor) |
Additional information
| Color | ZK-MT21 |
|---|
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