Features 1.TECHNICAL PARAMETERS: XH?M541 high power digital amplifier use TPA3116D2 core technology power amplifier board, output channel is 2, output power for 60W plus 60W, supply voltage DC12~24V, power efficiency of more than 90% 2.SUPERIOR PERFORMANCE: Digital subwoofer amplifier with stereo interface, so that the sound quality is more perfect, bring a wonderful experience 3.DURABLE MATERIAL: Digital power amp use aluminum alloy material, possess strong oxidation resistance, increase service life, suitable for home theater use 4.PROFESSIONAL DESIGN: The subwoofer amplifier is small in size and beautiful in appearance, which is perfect for sound system use, useful and practical 5.ADVANCED CIRCUIT DESIGN: HiFi audio amplifier board built in speaker protection circuit, most suitable for home bookshelf, computer, desktop, speaker specificationItem Type: Subwoofer Amplifier_x000D_ Material: Aluminum alloy_x000D_ Product Size: Approx. 125 x 75 x 30mm / 4.92 x 2.95 x 1.18in_x000D_ Chip Model: TPA3116D2_x000D_ Output Channel: 2 Channels_x000D_ Power Supply Voltage: DC12~24V_x000D_ Standby Current: 40mA_x000D_ Output Power: 60W plus 60W_x000D_ Power Efficiency: More than 90% PackageList1 xSubwoofer Amplifier