[ksw10 sub no sound, 2.1 setup help]

hey guys, sorry for the late reply. i tried the audessey speaker setup and the subwoofer does sound! after the setup was done, tried playing some music, still no sub :/ i also tried setting fronts as small, still no sub sound. please help :/

[ksw10 sub no sound, 2.1 setup help]

@tn i have already tried the preamp sub out as well, no sound :/

@james will give the audessey a shot later when i get home. thanks guys.

[ksw10 sub no sound, 2.1 setup help]

specs - onkyo tx-sr505, 2xB3's, ksw10 sub

for the life of me i cannot get the subwoofer to work when plugged in to the receiver pre-amp out, can anyone help me? subwoofer is fine if i connect it to the line in on the sub and left and right front speaker connectors on the receiver, problem now is where do i plug in my other 2 front speakers? receiver is connected to my pc. any feedback would be greatly appreciated. thank you