The TPA3250 device is a high-performance class-D amplifier. The device uses a 32 V supply and can provide up to 2 W x 130 W drive to a 4 Ohm load, or 2 W x 70 W continuous drive to an 8 Ohm load, and With 2 VRMS analog input interface, it can be seamlessly matched with TI PCM5242 and other high-performance DACs. In addition to excellent audio performance, TPA3250 also achieves high efficiency and no-load consumption of less than 1 W level.This is achieved through the use of 60 mOhm MOSFETs and optimized gate driver solutions, which have much lower no-load losses than typical discrete devices. Basic parameters: 1. Working : Class D 2. Quiescent current: 50mA 3. Work efficiency: 90% 4. Rated output : 2*130W 5. Frequency response: 20Hz to 20KHz 6. Working voltage: DC18V to DC32V 7. Maximum output current: 4A 8. Weight: 0.08KG Maximum Per Channel:101-130W Model Number:TPA3250 Channels:2 (2.0) color:Blue Material:plastic size:103 x 78 x 15MM Package Contents: 1 x TPA3250 digital amplifier board Only the above package content, other products are not included. Note: Light 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.