If your speakers are currently in their permanent positions, you have connected them to the correct speaker terminals and you have also set the speaker configuration accordingly, you can try to run Audyssey if you have the included microphone for the system. If you have not done so already, make sure the SB channels are set for 2, not just 1 and set the SUB for 1, not 2 in the speaker configuration settings.Speaking of the subwoofer, set its level to 5 to start and its Low Pass to 150(maximum). Connect it with a single cable into the L or R low level input. Those Sony speakers sound suspect. Were they part of a Home Theater in a box? Those could be troublesome. The model numbers of all of the speakers will be helpful in recommending an appropriate crossover setting for each. Audyssey will set them but you may prefer a manual setting.