My stereo's speaker outputs use RCA connectors. Can I connect these to the "TX Audio In" on the back of the Home RTX?
The Home RTX is designed to receive a signal from your stereo's auxiliary output (RCA) or your stereo's headphone output (3.5mm). Both types of outputs will feed the RTX the necessary level of audio for proper operation referred to as "line level". Though not as common, some stereo manufacturers do use RCA connectors for connecting speakers to a stereo receiver. DO NOT use RCA speaker outputs to feed the RTX "TX Audio In" an audio signal. Speaker outputs are not "line level" and may damage the RTX.