TPA3255D2 is a high-performance class D power amplifier, it has class D efficiency and can bring real high-end sound quality. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction function (PurePath Ultra HD). This technology allows the device to maintain ultra-low distortion throughout the audio frequency band while exhibiting perfect sound quality. and pure in quality; the use of high- not only guarantees safety and quality, but also has a long service life, but more importantly, it is a strong that the actual performance can reach the design goals. High-precision chip resistors are for the resistors to a good signal-to-noise ratio of the whole machine. Use special inductance for audio to the sound is clear and powerful. Product name: TPA3255 subwoofer amplifier Power amplifier chip: TPA3255 Power output: 600W Channel: Mono Power supply voltage: DC24V-48V, above 7.5A(without supply power) Load: 4-8 Ohm Subwoofer frequency adjustment: 20HZ-150HZ Note: 1. The audio input is an analog full-frequency signal, and a pure bass signal cannot be connected. 2. The 3.5MM interface and the Lotus input can only choose one, and they cannot be input at the same time. Color: Black Material: PCB + Copper Package Contents: 1 Amplifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.