Compatibility and setup Compatible with various digital amplifier boards, provided the power voltages match, enabling convenient and flexible integration with your existing audio system. Core function and performance The M273 Amplifier Board includes a PT2399 and NE5532 amplifier module to support seamless vocal and music blending, enhancing karaoke and playback experiences with clear, balanced output. Power options Supports DC power from 12 to 24 V or AC power from 5 to 12 V, allowing flexible supply choices to suit different regions and setups. Target users and benefits Designed for music enthusiasts, home entertainment users, karaoke lovers, and small event organizers, offering enhanced auditory performance without requiring complex configuration. Use scenarios 1) Home karaoke setup: pair with your microphone and existing amplifier to achieve smooth vocal blending with music playback for family gatherings or casual singing sessions. 2) Small events or gatherings: integrate with a portable PA or powered speaker system to provide reliable karaoke and audio playback for parties, meetings, or classroom activities. 3) DIY audio projects: incorporate into a compact home theater or music system to add flexible vocal/music blending capabilities, enabling customized sound for demos or demonstrations. Key attributes at a glance Model: M273 Amplifier Board Modules: PT2399 and NE5532 amplifier module Power: DC 1224 V or AC 512 V Function: compatible with various digital amplifier boards with matching power, enabling convenient setup and flexible applications Performance: designed for seamless vocal and music blending to enhance karaoke and playback experiences