OPA2604+LM3886 thermal grade HiFi power amplifier (three input band protection) Parameter: Outside fuselage dimensions: W188 mm, L301 mm, H65 mm Process: all the surface of the box is treated by drawing, oxidation and coloring Input voltage: AC 220V /110V Output power: 60W+60W Power supply part: power board set protection circuit and rectifier filter integration. 150 have a fever with shielding ring cattle, 25A bridge, 2 10000UF Leroy gold electrolysis filter circuit is composed of. The protection circuit is composed of the imported OMRON relay and the circuit, which includes neutral point voltage protection, overvoltage protection, switch machine delay, perfect protection and worry free use 
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