Active speakers have a custom built-in amplifier (typically a PC speakers). Conversely, passive systems require an external amplifier, from which the sound goes to each speaker.
The number of channels refers to the number of independent audio signals that can be reproduced simultaneously. An example might be 2-channel stereo sound, where each channel represents one ear (left and right), or 5.1 channel surround sound, which has five full channels (front left, center, front right, rear left, rear right) and one channel for the subwoofer.
Active speakers have a custom built-in amplifier (typically a PC speakers). Conversely, passive systems require an external amplifier, from which the sound goes to each speaker.
The number of channels refers to the number of independent audio signals that can be reproduced simultaneously. An example might be 2-channel stereo sound, where each channel represents one ear (left and right), or 5.1 channel surround sound, which has five full channels (front left, center, front right, rear left, rear right) and one channel for the subwoofer.
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