Features: High fidelities sound Performances : Features genuine chip for premium signals processing, delivering clear sound without interferences, for audiophile stereo systems. precisions Circuit Design : Equipped with ±1% tolerance metal film resistors in the main circuit to enhances signals to noise ratio and prevents current distortion for professional sound applications. PCB Construction : 1.6mm double layer board with 2oz copper thickness ensures stable high current transmission, for home theater or car sound upgrades requiring performances. Enhanced Bass Response : Integrated shielded 127 type high current inductors delivers powerful low frequency output, solving dynamic ranges limitations in traditional amps for rock/electronic music. Wide voltages Compatibility : Supports 18-24VDC input for flexible power solution, making for sound projects or upgrading existing sound equipment power systems. Specifications: Materials: PCB + electronic components Input voltages: DC18-24V Power: 50W+50W Size: 103x58mm Package Includes: 1PC Power Amplifier Board note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.