Is Imaging Worth Chasing?


Man, am I going to be torn apart for this. But I says what I says and I mean what I says.

Here’s a long term trend I’ve noticed in the audio press. Specs that used to be front and center in equipment reviews have essentially disappeared. Total harmonic distortion, for instance. Twenty years ago, THD was the start and end of the evaluation of any amplifier. Well, maybe power, first. Then THD. Armed with those two numbers, shopping was safe and easy.

The explanation for the disappearance is not hard to figure. Designers got so good in those categories that the numbers became meaningless. Today, most every amp on the shelf has disappearingly low distortion. Comparing .00001 to .000001 is a fool’s errand and both the writers and the readers know it. Power got cheap, even before Class D came along to make it even cheaper. Anyone who tries bragging about his 100 watts will be laughed out of the audio club.

Stereophile still needed to fill it’s pages and audiophiles still needed things to argue about so, into the void, stepped imaging. Reviewers go on and on about imaging. And within the umbrella of imaging, they write separately about the images height, width, and depth. “I closed my eyes and I could see a rock solid picture of the violas behind the violins.” “The soundstage extended far beyond the width of the speakers.” And on and on.

Now, most everyone who will read this knows more about audio equipment than me. But I know music. I know how to listen. And the number of times that I’ve seen imaging, that I’ve seen an imaginary soundstage before me, can be counted on my fingers. Maybe the fingers of one hand.

My speakers are 5-6 feet apart. I don’t have a listening chair qua listening chair but I’m usually 8-9 feet back. (This configuration is driven by many variables but sound quality is probably third on the list.) Not a terrible set-up, is my guess from reading lots of speaker placement articles. And God knows that, within the limited space available to me, I have spent enough time on getting those speakers just right. Plus, my LS50s are supposed to be imaging demons.

I’ve talked to people about this, including some people who work at high-end audio stores. Most of them commiserate. It’s a problem, they said. “It usually only happens with acoustic music,” most of them said. Strike one. My diet of indie rock and contemporary jazz doesn’t have much of that. “You’ve got to have your chair set up just right. And you’ve got to hold your head in just the right place.” Strike two. Who wants to do that?

(Most of the people reading this forum, probably. But I can’t think of any time or purpose for which I’ve held my head in a vise-like grip like that.)

It happens, every now and then. For some reason, I was once right up next to my speakers. Lots of direct sound, less reflections. “The Name Of This Band Is Talking Heads” was playing. And I literally gave a start because David Byrne was standing on the coffee table. Cool.

But, generally speaking, imaging is something I only read about. And if that little bit of imaging is the dividend of dropping more money into my system, I’m not sure that I want to deposit into that account.

I think that I still have a few steps to take that will pay benefits other than imaging. But maybe the high-end is not for me.

paul6002

"Imaging".....never thought of it, but having omnis’ makes me wonder if I take it for granted. And they’re not ’set up’ in a fashion here to really take advantage of it... 🤷‍♂️

@mapman .... Am I off-base with this absurdvation?

Are we unknowingly spoilt’ ? ;)

@thespeakerdude , What most people think is imaging is easy. Your saying this means you have never heard a system that images at the state of the art. I was an audiophile for 20 years before I heard such a system and I have heard 3 systems perform at that level in 65 years. I have not been in the business for a long time and I do suspect performance at this level is more common, but unless you know what you are trying to achieve getting there would be sheer luck. 

The parameters you specify are very important and I will add one more. The frequency response of the two channels has to be identical. It does not have to be flat. Two speakers of the same model are never identical and each one sees a different environment making the discrepancies worse. Even a symmetrical environment can cause issues. Each channel has to be measured and the discrepancies corrected. Doing this with any system on a reliable basis requires digital signal processing. Trying to get there with room treatment and positioning is a trial and error process and you will get there only by luck. The most important add-on any audiophile can get is a calibrated USB microphone with a measurement program. 

If the room and setup is bad, you will never get good imaging and soundstage.

If the room is really good you don't need expensive gear to hear good imaging and a nice soundstage.

As the quality of the gear increases you can get more detail, separation, deeper lows, etc., withing the soundstage.

Once you "hear it", you can't be without it.

 

 

 

https://www.binaural-recordings.com/

 

 

But... they are not as common and all recordings are not available in binaural format... and... can be much more expensive.... though... they do provide the sensation of "live performance."

Speaker placement is huge.


Are your speakers on stands and is the center of the tweeter approximately ear level when you’re sitting? This is important. 
 

Also isolating from vibration - clarity is key to getting imaging and vibration causes distortion. Any time I up the clarity I get more clear imagining. 
 

And finally, what is between your speakers?  This is something I recently discovered by accident. I formerly had cabinet (sideboard) btw the speakers that was approx 30” high - had decent imaging. But we got a new lower cabinet (18” high) AND ITS BEEN GAME CHANGING. It sounds like the speakers have been unblocked. Imaging is bigger higher, wider and more clear. 
 

if you can clear the space btw the speakers or lower any furnature that’s there it will help.