Daakro AS21HPA 2.1-Channel Bluetooth Amplifier Board | 300W x2 + 600W Peak | 19-51V | USB/AUX/BT | DIY Wireless Speaker

Overview

The Daakro AS21HPA is a compact, power-ready amplifier board designed for DIY audio projects and wireless speaker builds. Built around an imported TPA3255 HiFi chip with PurePath technology, it aims for clean, detailed sound with a wide dynamic range. This board supports a 2.1-channel configuration, delivering substantial output while remaining suitable for compact enclosures and custom enclosures alike.

With its emphasis on high resolution and low distortion, the AS21HPA creates an engaging listening experience across genres—from rich movie scores to punchy bass lines in music. The design prioritizes signal integrity, so you can explore music playback, gaming audio, or room-filling sound in a controlled, hands-on project environment.

Key capabilities

• TPA3255 HiFi chip paired with PurePath technology for ultra-high resolution and ultra-low distortion
• 2.1-channel configuration with two independent 300W output channels
• Peak power capability up to 600W to handle dynamic transients
• Wide input voltage range from 19 to 51V for flexible power supply options
• Multiple input options includingUSB, AUX and Bluetooth for versatile sourcing

Flexible inputs and power options

• USB input provides a direct digital or USB-audio path for compatible sources
• AUX input offers a quick wired connection to nearly any audio device
• Bluetooth input enables wireless streaming for a clutter-free setup
• Wide voltage tolerance supports a range of power supplies, making DIY builds more adaptable

Real-world applications span home theaters, garage workshops, or living spaces where a compact, high-fidelity amplification solution is welcome. The combination of generous channel power, supportive input options, and a broad voltage range makes it a solid candidate for enthusiasts exploring custom speaker projects or upgrade paths for existing enclosures.

Practical considerations

When integrating the AS21HPA, plan for appropriate heat dissipation and enclosure design to maintain performance over time. Pairing with suitable enclosures and cabling will help you realize the board’s potential while keeping the setup neat and reliable. This board is intended for DIY enthusiasts who enjoy configuring their own speaker or audio system rather than a plug-and-play module.