[Frameworks] Razor Blades

[2206rec]

Dear, 
I'm going to project Razor Blades by Paul Sharits tonight.
Just matched the lamps and lenses. 
In the instruction is also that the sound needs full treble.
My projectors have a separate base knob too.
Where shall I turn this one? (ccw or middle position?)
All suggestions welcome. 
Ohterwise I'll just use my ears.
Best, Floris Vanhoof

http://www.endlesswebsite.tk/