Sure. What I mean is that the p9k is a purely analog device (for those who care) and as such also includes basic input switching and gain control without passing through anything with digital circuits. It also solves the double bass issue in one fell swoop.

To make it all work, it also includes what appears to be a relay based unity gain bypass input that allows it to sit transparently between the 950 and the amps when not in use.

Quite a lot more than a relay box, but all potentially desirable features, and $400 isn't a lot of money really, when taken in perspective.