1. Power Output : 40W (PPW). 2. Power Source : AC110V/220V 50/60Hz DC12V. 3. Input : MIC INPUT ⊙ 2. AUX INPUT ⊙ 1. TAPE AUTO STOP CASSETTE DECK ⊙1(YT-40CS). TAPE AUTO REVERSE CASSETTE DECK ⊙1(PA-40WCA). 4. Output Impedance : 4 ~ 16 ohms. 5. Dimensions : 242W* 220D* 72H (mm). 6. Weight : 2.6kg/2.4kg.