I haven't had any luck from Onkyo on this problem, so I was hoping someone might offer a solution.
I have an Onkyo TX-SR502 with a Polk PSW350 sub. The sub works fine in all listening modes, except Stereo (the Onkyo manual indicates that the sub should work in Stereo mode). I've tried changing the crossover frequency and the sub speaker level on the receiver. I've also tried increasing the volume and low pass adjustments on the sub. There just doesn't appear to be a signal to the sub in the Stereo mode.
Has anyone had similar experiences with this Onkyo receiver? I use to have a Sony 830 unit that worked fine in the Stereo mode. Other than taking the receiver in for service, does anyone have any suggestions.