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You are here: Home Electronic Labs & Kits Electronic Project Kits (Must Solder) Amplifier Kits 40W Bridged Stereo Audio Amplifier
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40W Bridged Stereo Audio Amplifier
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40W Bridged Stereo Audio Amplifier

SKU# CK194
Price per Unit (piece): $29.95

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This circuit delivers more than 40W of music power into a pair of 4 Ohm speakers by providing two separate 20W bridged power amplifiers (one for each channel). It is based on four TDA20003 monolithic integrated circuits. Running on 12V DC, this stereo amplifier is ideal for the car in order to add two more speakers or to boost the audio power. It can be connected to any stereo audio source such as an Ipod, Walkman, CD player, MP3 Player etc. 
Supply voltage: 12 to 18V DC / 3 to 4A
Based on four TDA2003 Integrated Circuits
Input sensitivity: 100mV / 47K Ohm
Output power using 18V DC supply:
Music power: > 2 x 22W / 4 Ohm
RMS power: 2 x 16W / 4 Ohm or 2 x 12W / 8 Ohm
Frequency response: 30Hz to 20KHz (-3dB)
Includes four gold-anodized heat sinks
Includes volume control
PC board dimensions:


Price per Unit (piece): $29.95
SKU# CK194


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