Compared to the power supply in just about anybody's receiver, the 7125 is going to be a step up. Check out the first few pics on my Outlaw pics page : the big toroid at the top is the power supply, plus you can see the heat sinks on each channel. This construction is going to be similar to what you'd likely find in NAD's separate power amps, but there's not enough space in a receiver chassis to achieve this kind of power supply or passive cooling in a receiver.