Which is the most important part of a stereo system?


My system consists of a pair of B&W 630's, an old Denon 50 watt reciever (DRA-550) from the mid 80's, a Marantz CD5004 cd player, and now a Pro-ject Debut Carbon DC Turntable.  I'm pleased with the speakers and the cd player and while the Denon sounds good it has some issues and I want to upgrade.

I'm planning on returning the Pro-ject TT and getting a higher end TT.  I'm also looking into getting a new amp pre amp with a internal DAC.

Is the source the most important? The speakers? 

Please Help!
klimt
I'd call the "synergy" among the components and the cabling the "most important part" of a system.

If I'd put more emphasis anywhere, I'd go with the sources.  "Garbage in, Garbage out".
You hear people say the source? But you also hear people say the speakers. I was a press photographer in College and it's the lens that captures the image on film talking 35mm here. The better the lens the better the image. The body of the camera is essentially a box to hold the film. I would see students in the ’80s and 90s buy the top of the line Nikon for thousands of dollars and shoot with the standard lens it came with.
Eddie Adams the famous Time-Life photographer told me buy a $500 camera and a $2000 lens if you want to capture a good image. I think it's the same with the speakers being the lens and the source being the camera body. Also read that someone was suggested, Marantz I had terrible trouble getting my top of the line $6000 unit serviced after it crashed and burned in the first 12 mo. Has anyone else expended this? I know it's a separate question
The most important part of the stereo is bragging about how much money I spent.

After that, the room.
rbyington711,

I get where you’re coming from but personally I think the camera and recording studio analogy works a bit better. Wouldn’t you agree that it’s the microphones and lenses that do the vital capturing work?

Maybe a loudspeaker is more like the monitor you might use to later view the captured image.

Couldn't a poor loudspeaker be likened to a poorly calibrated monitor, introducing far more serious distortions than anything else in the chain?

Come to think of it, even a good loudspeaker will do that, just far less obviously.

Unfortunately recorded audio, existing in a circle of confusion without any established standards or reference points, does not yet have the equivalent of an international colour chart as used in photography (or film/TV).

So loudspeaker playback can only be an approximated guess at what was put down on tape, unlike a well calibrated monitor which can accurately reproduce what was captured on film.

Going further, maybe the captured image should be likened to the finished recording. Once it’s finished, very little can be done to improve it. For sure scratches and dropouts can be repaired the same way Photoshop etc can repair damaged prints but nothing can improve the captured resolution.

You know when you mentioned a $2000 lens I recalled a glossy black and white photograph taken of my sister at school back in the mid 1970s.

We still have this photo and to this day it remains amazingly sharp. None of the many many photographs since have come as close to that one for sheer image precision. It’s almost uncannily detailed and sharp.

Unless I ask her, and unless she remembers, I’m going to assume that it must have been an excellent camera placed on a tripod!

Or maybe the photographer just got lucky. Could happen!?

I can’t help you with the Marantz issue except to say that my experiences with Marantz (1 amp and 2 CD players) has shown them to be unusually reliable products. The only fault was with the CD remote control which needed cleaning and reassembly after many many years.

http://seanolive.blogspot.com/2009/10/audios-circle-of-confusion.html?m=1



Rbyington I get your analogy perfectly and just recently improving my source improved everything else down the line especially my enjoyment of listening to my favourite music however all source components are not created equal .
A new and improved dac didn’t do it , neither did new speakers or wires or anything else to the extent that I got from improving source components IE Innuos Zenith 3 server and the all in one box Innuos Phoenix USB regenerator, power supplies and data clock. 

Of course like a quality camera lens and choice of fine grain slide film back in the day the quality of the recording itself is equally important.