You can add some resistors in parallel connection for more audio input. To adjust the volume for each input channel, add linear trimmer or potentiometer with configuration: pin1> ground; pin2>output; pin 3>input.
10W Audio Amplifier with Bass-boost This amplifier circuit design is based on the 18 Watt Audio Amplifier, and was developed mainly to satisfy the requests of correspondents unable to locate the TLE2141C chip. It uses the widespread NE5532 Dual IC but, obviously, its power output ...
22W Stereo Audio Amplifier based TDA1553CQ This amplifier circuit will be nice for your car audio system. The circuit is simple, easy to build and not required large box or space. The TDA1553CQ is a monolithic integrated class-B output amplifier in a 13-lead plastic DIL-bent-SIL power ...
KA2211: 2×5.8W Simple Stereo Audio Amplifier This is a very simple and low cost circuit of dual audio amplifier based on IC KA2211 from Samsung. With single chip, this circuit will deliver up to 5.8W on each output channel. KA2211 is a dual audio power amplifier ...
STA5100: 140W Power Audio Amplifier This is a power audio amplifier circuit which gaining up to 140W audio output (single input/output). Build two similar circuit to build stereo 140W power amplifier based STA5100. Circuit diagram for one audio input/output channel: Download Download the STA5100 datasheet: ...
Audio transformers Since audio electronics presence, an audio transformer has played an important role. When the transformer compared with modern electronic components it will look big, heavy, and expensive but it continues to be the most effective in the solution of many ...
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