DAMGOO 440W TPA3251 Bluetooth 2.0 Amplifier Board

DAMGOO's 440W amplifier board is a compact 2.0 stereo power module that delivers up to 220W per channel with onboard treble and bass controls, Bluetooth 5.2, and multiple wired inputs for DIY wireless speaker projects.

This amplifier board combines efficient Class D amplification using dual TPA3251 chips with user-friendly controls and protections so hobbyists and small-scale installers can add high-power stereo output to custom enclosures. It runs from a wide DC supply (13–36V), accepts Bluetooth and AUX sources, and provides independent treble, bass and multifunction volume control for on-device tone shaping. The board ships with a screwdriver and manual; a power adapter is not included.

How much power and performance can I expect from this board?

The DAMGOO board produces a combined maximum of 440W, typically rated as 220W per channel under optimal supply and speaker conditions. Its twin TPA3251 Class D amplifier chips offer high efficiency and lower heat compared with older linear designs, making it suitable for compact builds.

• Rated output: 220W + 220W (dependent on voltage and speaker impedance)
• Efficient Class D design with TPA3251 x2 for reduced thermal load
• Wide DC input range: 13–36V for flexible power choices
• Supports 2.0 stereo speaker configurations

What inputs and controls does the amplifier board provide?

It supports Bluetooth 5.2 for wireless streaming and also accepts USB sound card, USB flash drive, and AUX wired connections so you can play from phones, laptops, or local media. Physical controls include three knobs: separate treble and bass adjustments plus a multifunction volume knob that also handles power, pause, and track skip.

• Bluetooth 5.2 pairing without password for simple wireless setup
• Wired options: AUX line-in, USB sound card, and USB storage support
• Independent treble and bass knobs for tonal shaping
• Multifunction volume knob with play/pause/skip and power on/off

What safety and reliability features are included?

The amplifier includes an intelligent protection system that helps prevent damage from common faults such as short circuit, over-voltage, under-voltage, overheating, and audio clipping. These safeguards preserve the amplifier and connected speakers during irregular conditions or wiring mistakes.

• Short-circuit protection to guard outputs and speakers
• Over-voltage and under-voltage prevention for stable operation
• Thermal protection to reduce risk of overheating
• Clipping detection to maintain audio integrity

How do I power and install this amplifier board in a DIY project?

Install the board inside a suitably ventilated enclosure and connect a compatible DC supply between 13V and 36V; higher voltages allow greater output but require matching speakers and wiring. The package includes an instruction sheet and screwdriver for basic mounting, but the power adapter and speaker wiring are supplied separately by the builder.

• Power requirement: DC 13–36V (adapter not included)
• Mount inside a ventilated enclosure to allow heat dissipation
• Use appropriate gauge speaker wire and matched speaker impedance
• Follow included manual for input/output and control wiring

This DAMGOO 440W amplifier board is aimed at DIY audio enthusiasts, maker projects, and small installers who need high-output, tone-adjustable stereo amplification with Bluetooth convenience. It’s best for custom bookshelf or tower speakers, portable powered cabinets, hobbyist studio monitors, and any project where compact Class D power, onboard bass/treble control, and robust protections are priorities. If you want plug-and-play amp modules with flexible power options and multiple inputs for custom speakers, this board offers a reliable, feature-rich foundation.