Sony STR-DH810 Receiver + speaker help

[themachine]

i have a Sony STR-DH810 A/V Receiver with center, front and left tower speakers and 4 surround sound Klipsch Quintet III satellite speakers with sub making my 7.1 setup but i'm hearing my left speakers much better than my right speakers, both are set on the receiver to 10.0 +

left speakers are 5ft from listening position while the right are 7ft
left speakers are 2 and half feet apart while the right is 4ft apart
i have tried turning down my left speakers to compensate for the right but i didn't get anything positive back from it.

my room forced me to have them like this, any help would be great guys, thanks

 

[AVRat]

To get the balance right, you really need an SPL meter if the Sony doesn't offer an auto-setup feature. http://www.audioholics.com/tweaks/speaker-setup-guidelines/setting-speaker-levels-distance-in-a-surround-sound-system