I am surprised at the unanimity of the preference for integrated.
I am surprised anyone seriously thinks separates can outperform an integrated without spending far more on the separates than the integrated. Shocked, almost, but for knowing so many never did the research.
As a kid of 13-14 back in the 70’s obsessed with getting the most from my meager paper route money I read everything I could get my hands on. Right away: the most expensive parts by far are the box, faceplate, and knobs. Even a little kid can understand the faceplate contributes precisely zero to sound quality. Anyone recommending separates is therefore recommending spending twice as much on faceplates and boxes that get you nothing in return.
This was back in the 70’s. Components then all had hard wired lamp cord power plugs and freebie patch cords. Nowadays we know the value of power cords and interconnects. Anyone recommending separates is recommending spending twice as much on these. Or buying half as good quality. Or, more often, ignoring this important component hoping no one will notice the glaring gap in their advice.
This all is bad enough. Then there’s the problem of impedance matching. Integrated designers do this to perfection. Impedance mismatch problems don’t happen a lot with separates, but they do happen. They never happen with integrated.
Then there’s fuses, pods, and space, none of which favors separates.
On the other hand, just to be fair and balanced, separates do look impressive and help create the false impression of expertise among those who don’t really understand what is going on. Which is a lot of people. So I expect we will always have them.
And people who want the most sound quality for their audiophile dollar will buy integrated.