Acoustic systems with RCA output
RCA
— initially, RCA is the name of a hardware connector that allows different application formats; however, in this case, a very specific option is implied, namely, outputs for working with an analogue audio signal. Most often they are used for linear audio, however, in some models you can find a specialized RCA subwoofer output.In general, this interface does not differ in noise immunity, but its capabilities are quite enough at least for home acoustics, including quite advanced ones. Note that with this connection, each audio channel requires its own connector; therefore, RCA jacks are usually installed in pairs — stereo left and right. The exception is the mentioned outputs for the subwoofer, where one connector is enough.