Actually, I'm a total neophyte at this though I've loved listening to music for decades. I also do not have the disposable income to throw around for high end components.
The B&K I've bought has shown me two things. The Carver amp I had was way too old to pusn further. Secondly, the speakers I built a year ago are better than I though when the B&K was powering them.
What I am hearing from my system that I didn't before is alot of texture. Simple things like the rattling of a guitar string or cleanly hearing the distortion effect of a guitar. There is alot of detail I was missing before the B&K
Now, I admit, the improvement may be due to a newer piece of equipment. The Carver I had was 22 years old. Then again, perhaps the B&K is that much better as well.
