Greetings, everyone. I Know this topic may be dead and buried, but though i'm new here, I just felt the need to check what has been said about the volume hack. I hacked my RH1 with success and i notice the difference: More gain, and for instance, with "unique" on at the eq, sound doen't suffer/ break as much as it used to, if we crank it above volume 20. In fact, little distortion appears depending on the type of music you're playing and only at volume 28-30. So, I'm very pleased with this hack so far. Be careful and nothing wrong should happen to your precious unit. Ta Ta.