Q. Can I attach a Bluetooth transmitter to the speaker outputs of my receiver? I do not have any preamp outputs that I see on the back of my receiver, and I want to transmit the signal to a Bluetooth speaker in another room.
—K.L, Milwaukee
A. Using speaker-level outputs will blow out the transmitter. You need a “line level” output, which is equivalent to the signal from a CD player or a turntable with a built-in phono preamp.