Question: Our installers are telling me the qt600 requires a PC to control the speakers.  My understanding was that the unit is a stand-alone, with the option of utilizing a PC to control.  Would you please let me know and if it is a stand-alone, please send me instructions (owner’s manual?) for our installers reference.

Answer: You will find the qt600 manual attached. You can control the volume levels on the LCD panel on the front of the unit. By pressing the right arrow you can scroll through useful information such as the zones that you have access to. It also may include your IP Address if you have it connected to your network. If it is connected to you network you can enter the IP Address in any web browser and control the qt600 that way as well.