TPA3255 2-Channel Digital Amplifier Board 600W×2 HiFi Class D Power Amp for 2Ω/4Ω/8Ω Speakers DC24-48V

Powerful HiFi Stereo Sound & High Output Power

Adopting dual TPA3255 professional Class D amplifier chips, this 2-channel digital amplifier board delivers ultra-high power output with stable and clear HiFi sound performance. It supports multi-impedance passive speakers, perfectly meeting the power demand of different home audio and DIY speaker systems. With ultra-low distortion and high signal-to-noise ratio, it restores authentic, delicate and shocking stereo sound quality, ideal for audio enthusiasts DIY upgrades and home theater sound system transformation.

Key Features

• Multi-impedance Compatibility: Supports 2Ω, 4Ω, 8Ω passive speakers, with peak output power up to 600W×2 (@2Ω), 300W×2 (@4Ω), 150W×2 (@8Ω), compatible with 10W-400W speakers

• Premium HiFi Sound Performance: 20Hz-20KHz full frequency response, 100dB high SNR and only 0.01% ultra-low THD, effectively eliminating noise and sound distortion for pure and layered sound

• Multiple Safety Protection: Built-in overheat protection, overcurrent protection and power-on delay protection functions, effectively avoid circuit damage and extend the service life of the amplifier board

• Stable & Reliable Operation: DC 24V-48V wide voltage power supply design, with stable power output; reserved fan interface for timely heat dissipation to ensure long-term continuous stable operation

• Professional & Easy Installation: Standard 2.54mm pitch 3P audio input interface, single-ended input design, simple wiring and convenient for DIY installation and equipment matching

Standard Operating Instructions (Must Read)

• Speaker Compatibility: This amplifier board is only suitable for passive speakers. It is forbidden to connect active speakers, active subwoofers or constant-voltage speakers to avoid equipment failure.

• Power Supply Requirements: Adopts DC 24V-48V power supply (10A or higher current power supply is recommended). The maximum voltage shall not exceed 48V. Do not reverse the positive and negative poles of the power interface, otherwise the internal components will be burned out.

• Mute Mode: Short-circuit the mute interface to quickly enter mute state for convenient audio adjustment.

• Audio Input Notice: Single-ended input design. Please do not reverse the positive and negative terminals of the input interface, otherwise abnormal noise will occur.

• Fan Matching: The reserved fan interface supports 12V 100mA DC fan for auxiliary heat dissipation.

• Installation Environment: Do not install the board in humid and watery environments, and do not power it on when placed directly on metal surfaces to prevent short circuit and safety hazards.

Product Specifications