Played via a Smartphone with Bluetooth results in the exact same lousy sound quality. I tried this in order to determine if perhaps the problem was with my PC hardware (i.e. the headphone jack, etc..). My belief is that the problem lies within the ISA33B Bluetooth pairing device.
Not 100% on-board that it is my speakers that are damaged as they worked optimally for several days (both of them), then, simply stopped working. The volume level was appropriate for my retail store operation, not too loud, so I don't think it was sound level that could have caused my problem.
Your response suggests that I check "cables connecting to speaker" are not damaged, however, there are no cables as this is a Bluetooth setup. The only cable to each of the two speakers would be the AC power cable and they are certainly not damaged or compromised in any way.
I'm still thinking that the problem is with the iLive Bluetooth module (the device that connects via cable to the headset jack on the PC). I don't believe it is the cable that connects that device to the PC as a different cable was used with the Smartphone (obviously).
You stated "As you took it apart, this has likely voided the warranty" - to be clear, I've taken nothing apart. I've simply put speakers up on shelves, Bluetooth connected them to the base unit, now have a problem.
I believe you are correct when you say that none of the three components (Bluetooth device and two speakers) are sold separately, so therefore I am going to be out of luck with this setup. I'll now search for something new and more reliable.
Thanks for trying to help.