The ZK-502MT Hi-Fi Stereo Amplifier is a compact and powerful 2-channel audio amplifier designed for high-quality sound output in DIY and home audio systems. Equipped with Bluetooth 5.0 connectivity, it allows seamless wireless audio streaming from smartphones, tablets, and other Bluetooth-enabled devices.

Delivering up to 50W × 2 output power, this amplifier provides clear, distortion-free stereo sound. It features onboard controls for volume, bass, and treble adjustment, making it ideal for customized audio performance. Its compact design and wide input voltage range make it perfect for both portable and fixed installations.

Features

• Dual-channel stereo output (50W × 2)
• Built-in Bluetooth 5.0 for wireless audio streaming
• High-efficiency Class D amplifier design
• Bass, treble, and volume control knobs
• Low distortion and high sound quality
• Supports AUX wired input (model dependent)
• Compact and lightweight PCB module
• Wide operating voltage range
• Easy integration into DIY audio systems
• Suitable for home and portable speaker projects

Specifications

• Model: ZK-502MT
• Channels: 2 (Stereo)
• Output Power: Up to 50W × 2
• Bluetooth Version: 5.0
• Amplifier Type: Class D
• Input Voltage: DC 5V – 24V (recommended 12V–24V)
• Audio Input: Bluetooth (and AUX if available)
• Control: Volume, Bass, Treble
• Speaker Impedance: 4Ω – 8Ω
• Efficiency: >90% (typical Class D)
• Protection: Overcurrent, short circuit, thermal protection (varies by version)

Applications

• DIY Bluetooth speaker systems
• Home audio amplifiers
• Car audio projects
• Portable sound systems
• TV or PC audio enhancement
• Workshop or garage audio setups
• Embedded audio projects