What is most important part of a system?


I remember reading someone saying that the most important part of a system was the source. I thought "Wrong! Speakers are the most important".
 
Now, I have changed my mind. Source is the most important part.

Right or wrong but this is how I came to this conclusion;

I have tried the same system with a CD player and a turntable. By far LP sounds better than a CD. Btw, the system had all high-end amps, speakers, cables, etc.

What is most important part of a system for you?


celo
The quality of recording that you are playing is the most important. A good recording will bring out the best even in a mediocre system and a bad recording will make the most expensive systems sound not listenable.
Yep, Audioman, but mediocre systems need their own recordings to sound good.
Most of the mainstream stuff is recorded crappy, so it will sound good in your car radio or iPhone ........
Agree, recording is the beginning of the signal and if it`s crap then everything below is a ................ :))
Yep, Schubert we know that sound depends of your room and electricity, but it will not change the recording quality. :)

P.S. What`s with your electricity in US?
In American big cities its pretty dirty . US infrastruture urban and rural is in very bad shape, money is needed for wars and stocks .
I am in in area of 4 million people ,music at 12 AM sounds much better that at 12PM . 
When I'm in Berlin or  Toulon sounds about the same anytime .