Quoted from DVDA:
Just joined the club with a premium and it came with a external Polk audio sub and I noticed the volume on speakers in the backbox are very low even after I turn of the powered sub. I also have more sound coming out of the sub in the cabinet than the speakers in the backbox. Has anyone else experience this? if so how do I correct this?
Sounds like (see what I did there?) the speakers in your backbox were replaced/upgraded and a sub-out was added. I did this to my The Walking Dead (Pro) and the speakers are now lower in volume than the cabinet woofer. I purchased an inline bass-rolloff inductor and volume control to balance it, but never installed them because I'm now used to the sound. The powered subwoofer should have its own volume and low-pass adjustments to blend it to taste.