TPA3255 4-Channel 315W×4 HiFi Class D Digital Power Amplifier Board, Balanced Input Audio Amp Module DC24-48V

Product Overview

This TPA3255 4-Channel Class D Digital Amplifier Board is a high-performance multi-channel HiFi audio amplification module designed for professional home audio, DIY speaker systems, and multi-room sound setups. Powered by 2 pieces of original TPA3255 amplifier chips and upgraded with 4pcs 470µF/50V large-capacity filter electrolytic capacitors, this amp board delivers ultra-stable, continuous, and powerful power output with outstanding sound purity. Adopting high-efficiency Class D operating mode, it features ultra-low quiescent current, ultra-high signal-to-noise ratio and wide dynamic range, bringing lossless, clear and layered HiFi stereo sound for all-level audio enthusiasts.

Full Product Specifications

• Product Model: TPA3255 4-Channel Class D Digital Amplifier Board

• Core Chip: 2PCS Original TPA3255 Amplifier Chips

• Operating Mode: High-efficiency Class D Digital Amplification

• Quiescent Current: 150mA

• Conversion Efficiency: Over 90%

• Output Power (Per Channel):

• - 315W @ 4Ω (10% THD)

• - 185W @ 8Ω (10% THD)

• - 260W @ 4Ω (1% THD)

• - 150W @ 8Ω (1% THD)

• Frequency Response: 20Hz – 20kHz Full Audio Band

• Dynamic Range: Over 100dB

• Signal-to-Noise Ratio (SNR): Up to 111dB

• Operating Voltage: DC 24V – 48V Switching Power Supply (DC Input)

• Recommended Power Supply: DC 36V Switching Power Supply

• Product Dimension: 108 × 94 × 35mm

Application Scenarios