bobby digital

Hello about a month ago i got a pair of Klipsch R15 PM speakers. I had set it up properly connecting the speaker wire to each speaker and have been having great audio coming from it. However today for some reason the left side speaker does not work (or very little). i haven't changed my wires or anything about the speakers since i have set them up so i am confused as to what could have happened to make the speaker not work anymore. I typically use the AUX method, connecting the speakers to my laptop. I did recently buy a new wire so i can adapt my phone directly to my speakers (USB-C AUX cable) and i feel like since i connected theses wires the problem has started. i have tried switching from AUX to Bluetooth and still only the Right side speaker plays, not the left side. if anyone can give me a hand with this that would be much appreciated!! - speaker noob