Description:100% brand new and high quality.Feature:Adopts original TDA7498E dual-BTL power amplifier chip, high power, good sound quality, no distortion, give you a great hearing enjoyment.Short the points shown on pictures to be standby or mute, also can be vacant.Temperature controlled forced air cooling.Support BTL mode (short J1, J2, J3, J4 located on the back of amplifier board).Specifications:Item Type: TDA7498E Amplifier BoardOutput power: 160W+160W (Vcc=36V, RL=4Ohm, THD:10%)Output power: 1x220W single channel in parallel BTL(Vcc = 36 V, RL = 3Ohm, THD: 10%)High efficiency: 85%Applicable speaker impedance: 4ohm, 6ohm, 8ohmFour fixed gain: 29.6dB, 33.1dB, 35.6dB and 35.6dBMaterial: Matel+PlasticSize: 125x79x19mm/4.9x3.1x0.7inColor: RedQuantity: 1 PcNote:Transition: 1cm=10mm=0.39inchPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Includes:1 x TDA7498E Amplifier Board1 x Some Accessories