Feature: 1. EXCELLENT PERFORMANCE: Power toroidal transformer work efficiently, high energy conversion efficiency, low standby energy consumption, more energy saving, no high frequency electromagnetic radiation, small internal resistance, strong anti interference ability, small size. 2. HEAT DISSIPATION, STABLE BRACKET: Power toroidal transformer adopts thermal conductivity frequency layer, not only less interference, but also conducive to heat dissipation, premium steel bracket, fixed and reliable, small vibration. 3. PREMIUM WIRE: Toroidal transformer adopts pure copper enameled wire, temperature resistance and flame retardant, low wire resistance, sufficient supply of high current and stable voltage. 4. INPUT AND OUTPUT: Input voltage AC 220V; output voltage 1) AC28x2 double 28V power amplifier rear stage; 2) AC12x2 double 12V preamplifier, etc.. ; 3) AC12x1 single 12V for control guard. The total power of the above is about 200W. 5. APPLICABLE SCENES: Toroidal transformer is suitable for speakers, amplifiers, subwoofers and other music equipment. Provide clean and stable power supply for preamplifier, speaker guard and amplifier board. Specification: Item Type: Toroidal Transformer Material: Copper Use: Power Transformer Input Voltage: AC 200V 50HZ Output Voltage: AC28Vx2 for Amplifier Rear Stage AC12Vx2 for Preamplifier Tone Etc AC12Vx1 for Control and Guard The Total Power Above Is About 200W. Package List: 1 x Toroidal Transformer Note: Transformer normal work permissible temperature ‑45‑+105 ℃: surrounding temperature ‑30 ℃ ~ +40 ℃. The average value of 24 hours does not exceed +35 ℃; more than +40 ℃ when the transformer's load capacity decreases; below 0 ℃ below, the transformer load capacity rises, the load function may slightly exceed the rated power, in ‑30 ℃ low temperature environment does not affect the normal startup and normal operation of the transformer, low temperature characteristics of the transformer's advantages.