Re: Variable sound quality, JBL PRX rig
Lisa
I can assure you the PRX600 series CAN sound great. I think you're dealing with a rough room, and inexperience. Speaker placement is critical in a room like this.
If you have the tool or support to measure the room, by all means that will be the best method.
When I use my system I "tune" it by ear, using recorded music. I think if you have a good clear recording that you are familier with this can work. Listen to your bass bins from behind while pushing the polarity button.
Try moving a little closer to the speakers to listen to what they are doing. These are not "long throw" speakers IMO. I also question the use of a Driverack. I don't use one, and find the JBL's can sound very nice with just a little EQing. I run the 615 volumes straight up, and the XLF's at 3 o'clock. I do use the XLF "crossover".
