Parameter:
Working voltage: AC / DC 12V
Standby Current: 450mAh (Max)
Controller IC: YDA7388 x 1
Controller IC Tyle: Class D
Output channel: 4 channel stereo
Output Power: 4 x 40W
Output impedance: 4ohm
Working efficiency: 90%
Working Temperature: -4°F to 176°F (-25°C to 85°C).
Working Humidity: 5% - 95% RH
Size: 4.5 x 3.3 x 2.0 inches (114 x 83 x 51 mm)
Package
1 x Electronic Tube Power Amplifier Board