I am learning electronics so this is a beginners question. Its about the CD4066 IC as mentioned here
Is the 4066 equivalent to four independently controllable relays, where one relay switches on the pair X1,Y1?-Is this the purpose of this IC? So four relays are required to switch (the 4 pairs of audio signals) X1,Y1
Because in the IC there are four switches that can control the four pairs above. So with this IC 4 speakers are controllable by a digital CPU.