PT2399 Digital Microphone Amplifier Board

Upgrade your DIY audio projects with the PT2399 Digital Microphone Amplifier Board, a compact and reliable audio processing module designed for microphone amplification, echo effects, and sound mixing. Powered by the popular PT2399 digital echo IC, this board delivers clear, low-noise audio with adjustable controls for microphone volume, music volume, echo level, and master output.

Ideal for karaoke systems, DIY amplifiers, public address (PA) systems, audio mixers, Bluetooth speakers, and home entertainment projects, this amplifier board provides excellent sound quality with simple installation and user-friendly operation.

Its dual 3.5mm audio ports, microphone input, and multiple rotary controls make it easy to customize your audio experience while maintaining stable performance and minimal distortion.

Key Features

• High-performance PT2399 digital echo processor
• Crystal-clear microphone amplification with low noise
• Adjustable Microphone Volume, Music Volume, Echo, and Master Volume
• Built-in audio mixing function
• Smooth and natural digital echo effect
• Dual 3.5mm audio input/output connectors
• Easy DC power connection
• Compact PCB design for DIY audio projects
• Stable operation with high-quality electronic components
• Simple installation and wiring

Specifications

• Product Type: Digital Microphone Amplifier Board
• Main IC: PT2399 Digital Echo Processor
• Function: Microphone Amplifier with Echo & Audio Mixing
• Power Supply: DC 9V–15V (recommended 12V)
• Audio Input: 3.5mm Audio Jack
• Microphone Input: Supported
• Audio Output: 3.5mm Audio Output
• Controls:
  • Master Volume
  • Music Volume
  • Microphone Volume
  • Echo Level
• PCB Material: FR-4
• Applications: Karaoke, Audio Mixer, DIY Amplifier, PA System, Bluetooth Speaker Projects

Applications

• DIY Karaoke Machines
• Public Address (PA) Systems
• Bluetooth Speaker Projects
• Home Audio Systems
• Microphone Preamplifiers
• Audio Mixing Circuits
• Sound Effect Projects
• DIY Electronics and Educational Projects

Package Includes

• 1 × PT2399 Digital Microphone Amplifier Board