Gunbei,
Currently, I have 1 Power2 from wall to amp and 1 from juicebar to DAC. The Audition goes from juicebar to transport. I havne't played around enough with the Audition to say where it is best used in my system.
I am using the ARC integrated amp as preamp. My system sounds marginally better with a preamp than without. Remember, this component doesn't have detachable powercord. I feel the benefits/sonic characteristics of using VD on my other components are reduced because I am forced to use the stock cord on the preamp. This makes powercord comparison that much harder.
Currently, I have 1 Power2 from wall to amp and 1 from juicebar to DAC. The Audition goes from juicebar to transport. I havne't played around enough with the Audition to say where it is best used in my system.
I am using the ARC integrated amp as preamp. My system sounds marginally better with a preamp than without. Remember, this component doesn't have detachable powercord. I feel the benefits/sonic characteristics of using VD on my other components are reduced because I am forced to use the stock cord on the preamp. This makes powercord comparison that much harder.

