From the link.
"The Glory knob's labeling allows adjustment between Earth (no effect) and Heaven (full effect)."
Pure gold.

I know I'm chiming in a little late on this but yeah, I've heard the Glory Comp and the sound is huge. It doesn't sound small like a RNC (not to bash the RNC but you know what I mean). The glory comp is wide open with big cojones. Expect your lows to have a lot of meat through that thing. The presence you hear is really "glowing" also - that's the only way I can describe it. You can tell there's a lot of voltage getting to the tubes.