Well since I've got such fast and nice answer on my first question post, here is another one :

almost every Receiver have a Switched AC outlet on the back of the receiver that allow you to plug other component that will be switched with the receiver.

if I check on the back of my RX-V2500 the outlet state :
120V 60hz
100W MAX total
0.8A Max total

this kind of concern me since I am plugging my Subwoofer amp in this outlet and my amp is a Samson S1000 who carry a 700W total power.

should I been concern about that or is an AC power Outlet work exactly like a multi switch or a power bar and can supply all the power I need?

thanks