Toshiba 2SC5200 2SA1943 400W Mono DC +-20-90V Class AB audio amplifier

400W class AB audio amplifier board for 4 ohms.

NOTE: requires a symmetrical DC power supply; a standard power supply will not work.

Specifications:

• mono power: 400W at 4Ω impedance
• power supply: symmetrical DC power supply +-20-90V
• amplifier transistors: Toshiba 2SC5200 2SA1943
• Dimensions: 195 x 60 x 45 mm.

The transistors require a heat sink and an insulator between the heat sink and the transistor.