Specifications:
Input Sensitivity: 500mV
Input Methods: AUX + Bluetooth
Amplifier Chip: Chinese amplifier chip
Channels: 2.1 Channel (L/R + Subwoofer)
Compatible Speakers: 20–100W, 4–8Ω
Protection Mechanisms:
Reverse polarity / Over-temperature & over-current / Short-circuit protection
Power Supply: DC 12–24V/≥5A (Must not connect to 24V battery packs)
Dimensions: 93×90×22 mm
Output Power:
| L/R Channels: | Under 50W |
| Subwoofer: | Under 100W |
Note:
Adequate output power is achieved ONLY when:
Sufficient audio input signal is provided
Power supply voltage/current meets requirements
Power Output Principles:
- Higher supply voltage → Greater output power
- Lower speaker impedance → Greater output power
Critical Warning:
Power supply MUST exceed amplifier’s actual operating power requirement!
Package Includes:
1 * ZK-MT21 Power Amplifier
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