Make speakers disappear. Simple, cheap


My pet peave...

This simple visual trick is without question the biggest improvement in creating the illusion of stereo image that I've ever done. The illusion created is amazing and the improvement is HUGE. However I rarely see it used in two channel systems. I don't see any You tube reviewers using this illusion. When I go to audio shows it amazes me how MOST of the displays overlook this simple trick. (there are a small handfull of high end displays that get it)

I also have difficulty getting anyone to try this effect. It's too much of a commitment? WAF factor maybe??  They spend 10's of thousands on equiptment then miss the target on the biggest improvement of all!!

I'm flabbergasted when I see PS Audio new listening rooms that completely miss the mark on this illusion. Their rooms are bright as day and there is ZERO abience created. I think Pauls wife decorated the rooms and unfortunatley knows nothing about lighting.

You need to create the 'canvas' for the image to appear.The back wall behind the speakers should be flat black and as dark as possible. NO lights on the center back wall. My favorite is a matte dark black fabric that also aids in reducing reflections off the sheetrock.

You want to create the illusion that there is NO back wall. Just a deep, dark abyss from which the instruments will magically appear. This can be further enhanced by dimming the lights elsewhere in the room. Much like a movie theater. Ever notice a broadway play or a Las Vegas magic show is all about controlled lighting?  

It's also a great effect to hi-light the speakers face with very low level up light. (Cheap at Ikea) or even a candle will do. Gentle lighting in front of the speakers or a down spot light in the middle of the room can even make the back wall darker.

Black paint will also work but I prefer a dark velour fabric.

The effect is dramatic and absolutely worth the little cost and effort yet no one does it. 

 

gdaddy1

Well, not completely dark. There was the kitchen light that shined through the full window door off to the left of the setup. The illusion of what was heard was flat out, special. This was just a crazy setup we created out of leftover gear at an audio event eons ago. Still unforgettable. 

We were obviously in the mountains, so no ambient or city lights were around us. The nearest town was 7 miles away, over the other side of the mountain, and even then. That was the first town for about 30 to 50 miles, in all directions. Plus, it was a very small town....so it was rather dark. If you walked off of the porch? You couldn't see a thing, even after 5 minutes of no lights being on. A flashlight was required to see.

The only exception was when there were no clouds and an unobstructed (by the mountains) full moon. 

Tom

With eyes wide open you can 'see' the musicians. Instead of staring at a wall.

@gdaddy1 if you are staring at the front wall (without the paint/fabric in place), then you still have to work out your speaker placement, since you are not able to get the depth that the system should project. With the right setup you would have the perception of depth with vocals (most of them) near the front and the instruments either on the sides and/or behind - depends on the recording.

Still interested in seeing your setup with the paint/fabric; if you can post it.

Dear @treitz3  :  Thank's again.

I knew that I was missing " something " wider on what I could imagine.

For a few days I will be busy but I come back to you as soon is possible due that exist many critical and inresting audio  issues in your posts that I would like to share here.

Rigth now I only can think that in that " free space " the speaker efficiency spec could be really important.

 

R.

@milpai Of course you still have to "work out your speaker placement". That's critical to the creation of the phantom stereo image. The 'black wall' simply makes the wall disappear and creates imaginary space for the musicans. As I pointed out, otherwise you're looking at a wall that detracts from the stereo experience you worked so hard to create.

I don't have a photo handy but my system looks like this with less equiptment clutter in front. Minimalism is key. Equiptment off to the side is even better.

 

 

 

@gdaddy1

You are speaking to an issue that has been near and dear to my heart for a long time .

I’m all about ambiance and setting up the most effective presentation possible.

First, I’m going to reference this  in terms of my home theatre set up.

Around 2009 I had my two channel listening room - which essentially took up our front living room in the house - renovated to do high-performance projection based home theatre duties as well.

And yet at the same time, not only did I want to have a high-quality surround system in the room as well as a mass massive projection screen, I also wanted to maintain a completely separate two channel stereo system to indulge my audiophile whimsies.  So I was looking to balance a number of very difficult things - a room that was for high performance two channel, As well as high performance surrounded Home theatre duties, and yet at the same time it’s in the front main room of our house and I didn’t want it to look like some dark home theatre came.  

I had spent many years in the flatscreen world optimizing the experience of even watching movies on my plasma TV, which involved draping black velvet around the flatscreen, and even creating black masking for Cinemascope movies.  Nobody I know was doing that just for their flatscreen viewing.

And I brought the same obsessiveness to moving up to projection based watching .

I chose an extra large screen on my wall , and I surrounded the screen with black velvet, and I created four way automated black velvet masking so that the screen can take on any shape size for any aspect ratio.  

But the other important move I made  was that… I always found room rooms with a projection screen and left centre right speakers plugged on the floor around the screen to look haphazard and unfinished.  

So I carried out a short black velvet stage area at the bottom of the screen a few feet into the room. (it’s an area board covered with black velvet).  And then I had fitted black velvet covers made for my left centre and right speakers, as well as covering anything else stands, included in black velvet.

And those are placed on that  black velvet stage area.  What does is it makes everything look cohesive around the screen.  And through experiment I had found that ANY visual cues around the screen - including loudspeakers - have an effect on the perception, even if you’re not deliberately paying attention to this distraction of the speakers.  Any reflection from the speakers adds another visual cue of distraction.  So with my set up the speakers in black velvet completely and utterly disappear from view not only when watching movies, but under most lighting conditions. Unless we’re talking about bright daylight coming in most people don’t even know those speakers exist in the room, even though they are fairly large.

And then for the ceiling, we did a bulkhead built down covered and stretched brown filled that looks like a solid ceiling.  The stretch brown felt provides much more light rejection from the screen than any dark paint could manage, preserving contrast on the screen.

Also acoustic material  is strategically placed in parts of the ceiling behind that felt.

And then I hid curtain tracks around the top of the room.  And there are brown velvet drapes that serve both as decoration, and I can also pull those to any points along the wall I want to manage sidewall reflections for my two channel listening.  But also behind those thick brown curtains are thinner, ultra black velvet curtains. 

Those black velvet curtains can be pulled across all the walls in the room, turning the room into a “ Batcave black box” for movie viewing.  In this way, the room just disappears from view leaving a huge screen is just floating in front of you, and also maintaining the highest contrast on the screen as possible.

So this allows me to have a room that looks  much more normal and bright and cheery during the day, but which can at any time be turned into a very high performance Home theatre (7.0 surround… my speakers go low enough. I don’t feel the need for a subwoofer.).

pt 2 next…