This small amplifier is constructed around the TDA2003 IC, capable of delivering 4Wrms at 4 ohms. The IC is fully protected against overheating and short circuits. A conventional direct current is sufficient as power supply.
music power output: 7W / 4ohm
RMS output: 3.5W / 4ohm or 2W / 8ohm
total harmonic distortion: 0.05% (1W / 1kHz)
frequency response: 20Hz to 20kHz (-3dB)
signal/noise ratio: 86dB (A weighted)
input sensitivity: 40mV / 150Kohm
overload and short-circuit protected
supply voltage: 15VDC (8 to 18VDC possible) / 0.5A
dimensions: 55 x 35mm / 2.2 x 1.4"