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

Showing 2 responses by tonywinga

@kota1 

Those are speakers?  They look like transporter inhibitors.  What century are you from?

And that top picture- are those cooling fins on the back of those speakers?

I played the violin back in school (1960s). Never thought to nail it to the wall.

That’s all for now.  Ba dump ba.

This audio hobby is challenging and that is what makes it very exciting.  The whole point of stereo is to recreate the 3D soundstage of the musicians and singers.  Several challenges precede that goal however.  First, is tonal balance so that the music sounds right- sounds live.  Probably one of the biggest challenges we face is bass response.  Getting that last bottom octave is a challenge not just for speakers but for the room as well.  Then we have Signal to Noise and distortion to deal with. One type of distortion not often discussed is dynamic or responsiveness.  Can the music reach the crescendos and the decrescendos and do it like a live performance.  And when it comes to tonal balance and bass response, there is no right answer.  Just as musicians have their signature sound and the way they make music from their instruments, we audiophiles have our own artistic input into how the music is reproduced on our systems.  If one is fortunate to hear various hifi systems in their lifetime, they will have a handful of stereo systems that are defining moments in hifi for them.  My very first defining moment in hifi for me was a pair of modified Quad ESL's mounted in wooden frames for extra stiffness and powered by a Quicksilver Tube amp with a modified ARC SP-8 and a Sota Star turntable.  It was early 1988 and it was a magical moment for me.  I can still remember the magic of those speakers.  That started me on the "true" hifi journey.  

The best systems can not just meet the "basics" of audio reproduction but they also can paint a wide and deep 3 dimensional sound stage that can make you feel like you are there in the room with the musicians.  The best of these systems will make you feel like the musicians are moving around in the room with you.  It can actually feel creepy or spooky.  Since the day I heard those Quads, imaging has always been a priority for me.

Speaker placement, eliminating as much noise as possible, and room dampening are critical.  In addition, isolation of each component- including the speakers will sharpen and define the images.  The right cables are important too in order to bring the images into sharper focus.  Some level of imaging is possible with just about any stereo system.  Unfortunately, it seems like the more expensive speakers, amps, preamps and sources as well as cables contribute to reaching the pinnacle of imaging.  One other point- turn out the lights when you listen.  It makes a difference.  

Oh, and I did have a neighbor one time get up and leave the room.  He did not like the spooky imaging one bit.  Realistically, imaging is not for everyone.  Some do not even care about it at all.