I can't turn the volume up past about 1 o'clock on my EVH 5150III 50w head before it clips the H9.
Try cranking your volume up and I'll bet you see it clip as well.
I've tried putting an EBTech Line Level Shifter in the loop and it seemed to help, but I ended up just deciding not to turn the volume up past 1 o'clock because it's simpler in the long run.
I understand that the H9 was designed to be run before the amp, but most of the effects I use (Chorus, Delay, Reverb, etc.) are typically better off after the gain stage.
Hopefully Eventide will take this into account for future (guitar-oriented) products and give us some more flexibility here.
