I have a Pioneer s-21w at the moment, been using it in combination with a Sony STR-DH540 for a while now without any issues.
However, today the sub wouldn't go from stand-by to active when there was a signal (wii U for example).
What could be the issue? Is there something wrong with the sub or could it be the receiver?
If it's the sub: I had my eye on the Pioneer s-51w, would it be an upgrade?
sorry about that figured it had a high cut control like my yamaha. i know that most receivers also have that control in the receiver itself. but i think thats what the other person is talking about. turn the gain down, therefore turning the high cut down to a lower HZ. but if your doesnt have this then i guess you would have to do this in your receiver. better yet call pioneer.