An Experiment in Speaker Placement


For a host of reasons – WAF, the placement of the cable box, the ability to walk through the room, and my desire to have my system someplace where it’s integrated with our home life, as opposed to be locked in a dedicated room – my system and speaker placement has never been ideal.

My room is 15x18 and ordinarily all of the gear is on one long wall with my listening chair backed against the opposing wall which leaves my head too far from the speakers. In general it leaves the system sounding ok on image width, but very flat and one dimensional front to back.

It sounds good, and of course I listen to it that way all the time, but I’ve been really curious to see if there was a better room setup.

A friend had e-mailed me the Cardas website, which among other useful information has a section on proper speaker placement (http://www.cardas.com/content.php?area=insights&content_id=26&pagestring=Room+Setup) which includes how to calculate your distances from side and rear walls, as well as where to put your chair, so I thought I’d give this a spin.

My wife graciously agreed to vacate the family room for the weekend, let me store the sofa in the kitchen, and make a pile of everything else in the corner so I could play with this.

And now it’s set up. How does it sound?

Well, for starters, all the essential qualities of my system are still there. The speakers have the same basic sonic quality and bass extension, the amp has the same clarity and the CDP has the same level of detail. All of which are good things.

The differences though are real and important, and I’ll say right now, beneficial.

To begin with, the scale of music is greatly improved. Image sizes actually approximate what they might sound like in a hall or club. They’re bigger and more appropriate to the music. A good example is Ahmad Jamal’s new record, ‘A Quiet Time’. If you haven’t heard this record, it’s among the best piano recordings I’ve heard in a while. It really does a great job of capturing the size, and particularly the weight of the instrument, and with the room set up this way the size of the instrument sounds remarkably close to what a real piano in the room would sound like.

Second, the speakers really disappear. Spendor S8s are good at this trick in most settings, including the way my room is normally set up, but the transformation seems particularly complete this way. Listening to Oscar Peterson meets Roy Hargrove and Ralph Moore there is nothing that seems to be emanating directly from either speaker. An adjustment in toe-in – pointing the speakers directly at the listening position – really locked the images into place across the width of the soundstage.

Which leave us with the final dimension: soundstage depth.

I would love to be able to say that I’ve acquired the ability to clearly estimate how many feet behind the saxophone the drummer is sitting, but I can’t. It’s not that obvious. Certain recordings that are known for their natural stage depth do in fact exhibit those qualities well. Alain Toussaint’s Bright Mississippi leaves the big kick drum well receded on the stage – not exaggerating it – but certainly making it more obvious. Another favorite for stage depth, Clifford Jordan’s Live at Ethel’s also exhibited good depth, however, unexpectedly, the entire sound stage, including the lead tenor horn sounded a bit back from the plane of the front of the speakers.

I think because the speakers are closer together than I usually have them, some recordings that sometimes seem overly baffled between instruments also seem to have a more natural presentation. Shelly Manne and His Men Play Peter Gunn – a personal favorite, fantastic recording and terrific performance from the early days of stereo on the Contemporary Label – sounds much more naturally organized.

But back to the depth question: yes, in certain passages instruments sound more properly receded that they do in my normal setup – pianos behind horns, etc. – but its much more subtle than that. With the instruments sized properly, with appropriate scale and weight, recordings that have room reverberations and depth exhibit them naturally. Those that don’t have those effects don’t suddenly sprout them. But the scale itself leads to a sound that has a more physically realistic, three dimensional quality. It sounds great!

My only complaint? Eventually my wife is going to come back downstairs and tomorrow I’ll have to put everything back where it works best for the household. But I’m going to enjoy it for a few hours first.
grimace
You can read books to give yourself a basic knowledge, but there is nothing like trial and error.
Also, with all of the recommendations for room treatment remember furniture and window treatments are room treatment too.
If you need to buy a commercial room treatment keep in mind ASC ( Acoustic Sciences Corp) makes the best products for Recording Studios, High End Audio, Home Theater, Soundproofing, Church Acoustics, Classroom Acoustics and the list goes on. I think they know what they are doing.
I have been using their products for years and I am thoroughly satisfied.
Maybe try to convince your wife to leave the gear with some sort of bribe! Works for me!
Now that you've tried the Cardas method, try the Sumiko Master Set method. I find the results better in my room set-up using Master Set. Also, the Audio Physics method works great if you are using long wall speaker placement.
Where to find the Sumiko set up method? I imagine the Audio Physics method is on their web site?
Grimace -
Thanks for starting this thread and thanks to all those who replied. Very helpful info. My speakers (Totem Forests) are also on a long wall (~32" from front plane to wall behind them) in an alcove with dimensions similar to your listening space. I've worked a ton w/speaker placement, listening position and have DIY room treatments in place. I've got excellent stage width and imaging but stage depth - no so much. I hear hints of it from time to time but not as 3D as I can imagine. Could be room limitations as many have noted. Never the less, I would appreciate recommendations of CURRENTLY available CD or SACD recordings that display good stage depth. (I did note with interest the recordings you mentioned). My thanks in advance to any who take time to read this and provide some ideas about music w/good stage depth.