I am trying to output sine waves to some powered speakers. I am aware that I need to do some sort of impedance matching but I'm not entirely clear on what I need to do to achieve that.
The measured input impedance of the speakers that I am using (an old boombox, with RCA inputs) is 53kohm. I ruined one of the DACs on another board trying to hook up the DAC directly to one of the channels through the RCA input so I am a little hesitant to connect it now. Could someone please provide some guidance?