Features: Engineered with original TDA1521 amplifier chip, this double channel board delivers 2x15W auditory output supports flexible double power supply ( DC8 20V or AC6 15V ) for versatiled integration. Featuring a compact 50x50mm PCB design with professional rectifier filter circuitry, this amplifier module achieves optimal clarities. Designed for electronics enthusiasts and audiophiles seeking upgradeable auditory, for customizabel loudspeaker or amplifier refurbishment projects. Perfectly suited for home theater setups, music listening stations, and compact studio environments where space efficient amplification with double channel separation matters. Specifications: Product name: TDA1521 amplifier board module Component: PCB Power supply: double DC8-20V/AC6-15v Parameters: double channel output, 15W per channel; supports double DC8-20V or double AC6-15V power supply Output power: 2x15W Chip type: TDA1521 Number of channels: double channels Size: sbout 50x50mm/1.97x1.97in Package: Not included radiator Package Includes: 1PC TDA1521 Power Amplifier Board Module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.