1. Stereo mode (STEREO). The output red and black wires of the left and right channels of the power amplifier are respectively connected with the red and black terminals of the left and right speakers, and the audio signals are input from the left and right channel input interfaces of the power amplifier, respectively, and the left and right channel potentiometers of the power amplifier are respectively controlled. Channel speaker volume.
2. Bridged mono mode (BRIDGE). The two output red terminals of the power amplifier are connected to the speaker, but in the bridge mode, the output impedance of the amplifier is doubled, and the power is increased by more than three times by 4 times (the theoretical value is 4 times). The advantage is that the input and output are balanced and the power is increased. Disadvantages: The output impedance increases. Amplifier bridging is mostly used for subwoofers that require high power.
3. Parallel mono mode (parallel). In this mode, the output impedance of the amplifier is reduced by a factor of two and the power is increased by a factor of two. Most of the current low-resistance high-power speakers use this connection. Different branding methods for power amplifiers are different! The two output red terminals of the parallel mono mode power amplifier are connected by a route, and then a red end and a black end are connected as output terminals to the speaker, and an audio signal is input from the left channel input interface of the power amplifier. The right channel interface is left unconnected, and the volume of the speaker is controlled by the left channel potentiometer of the amplifier.
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