Power Monaural Audio Foramplifier Maximum output power of 150W with a recommended 100W for 2Q speakers, delivering clear and powerful sound performance. Digital Audio Foramplifier Board NE5532 front stage and TPA3116D2 rear stage foramplifier chips Signaltonoise ratio of 100dB for audio output Single Channel 150W Digital ForAmplifier Board Compact dimensions of 77mm x 73mm x 19mm Designed for DIY audio projects and space constrained applications TPA3116DA Digital Audio Foramplifier Board Compatible with a wide range of power supply voltages from 12V to 26V performance at 24V for stable and efficient operation Applications and use scenarios DIY home stereo or home theater upgrades Use this monaural board to upgrade or build a dedicated channel with up to 150W output, achieving clearer and more powerful sound in a compact package. Space conscious speaker projects The small form factor of 77mm x 73mm x 19mm makes it suitable for builtin cabinets, soundbars, or instrument amplifiers where space is limited. Educational, hobbyist, and mobile applications The wide 12V–26V supply range supports lab benches, educational demos, and mobile or vehicle setups that can provide 12V, with 24V offering performance for stable operation.