I'm presuming you mean the speaker protection relay in some amplifiers?. It has two functions, one is to disconnect the speakers if the amplifier has a DC level on the output (as it would kill the speakers). Secondly, it delays connecting the speakers when you turn it on, so as to avoid any clicks or pops - it also disconnects the speakers when you turn the amp off as well, for the same reason.
I'm presuming you mean the speaker protection relay in some amplifiers?. It has two functions, one is to disconnect the speakers if the amplifier has a DC level on the output (as it would kill the speakers). Secondly, it delays connecting the speakers when you turn it on, so as to avoid any clicks or pops - it also disconnects the speakers when you turn the amp off as well, for the same reason.
because the sun p alarm i made isn't working and it is from the same book although i did all the connections properly. can u verify that figure also please?
how am i supposed to connect the relay to the amplifier. i am using a radio circuit to show the output . connect the coil wires as shown what about the other three??