Harman Kardon PA2000 ?

Devo220

OK i got one of these off ebay to power my front RTi8's, and I see it has volume controls on the back for each channel. My question is how do I control the volume, do I set the amps control somewhere and forget it and control it with my reciever or do I have to change the volume on the amp as well as the reciever all the time. I have a HK AVr 335 reciever w/ pre-outs that I will be connecting it to. Also where do you set the level to, like 10 or 11 oclock.

AsSiMiLaTeD

turn the volume all the way up on the amp and use the volume control on the receiver...