Power Amplifier Board DC 12-14.5V 4 Channels Board Amplifier 4 X 41W
Four-channel output, 41W, high power output. Output power: 41W 4. 1 Audio Amplifier Board. Number of channels: 4 channels. Appearance size: 80 50 40mm / 3.1 2 1.6in. If you are satisfied with our service, pls.