This amplifier is based around the TDA2003 Integrated Circuit and provides up to 10W of output power using a 12V DC supply. The circuit also includes a built-in microphone pre-amplifier with a microphone jack mounted right on the PC board. The two inputs, "LINE" or "MIC" can be selected using the slide switch.

Features:

• Supply voltage: 12 to 18V DC / 0.5A
• Power consumption: < 45mA (stand-by)
• Input sensitivity:
• Aux – 75mV / 47K Ohm
• Mic – 2 to 5mV (dynamic)
• Output power using 18V DC supply:
• Music Power: >10W / 4 Ohm
• RMS Power: 7W / 4 Ohm or 4W / 8 Ohm
• Frequency response: 20Hz to 20KHz (-3dB)
• Maximum distortion: 0.5%
• Includes gold-anodized heat sink

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