High power class D digital amplifier. – Two-channel stereo, 2x100W power output. – Applicable speaker impedance: 4/6/8 ohm(8 ohm is the best). – Sound quality is very good and it can drive 4/6/8 ohm speakers. – Short-circuit protection and over temperature protection. Specification: – Material: metal – Size: 110*70*10mm/3.61*2.30*0.33inch Package Includes: 1 Piece TDA7498 Digital Power Amplifier. Note: Recommended power supply: 24V output , 5A or above.