Speaker Placement - Frequent Placement Changes?

I advocate having flexibility to alter toe-in for one centered listener, and two off-center listeners, using DBX Crossfield Dispersion Method

https://www.audiogon.com/systems/11516

2. Single Listener: tweeters each side aimed at listening position. To keep volume of narrow dispersion high frequencies relative to volume of mids and upper bass

 

3. Two Listeners: use DBX Cross Dispersion Method: right tweeters aimed at left listener; left tweeters aimed at right listener. Result: wide decent enjoyable imaging, each listener hears ’enough’ of the opposite side.

toro3 OP

Thanks for your compliment,

Once I learned how to insert images in posts from Virtual System(s), I use the Virtual Systems for many things

https://www.audiogon.com/systems/users/elliottbnewcombjr?_gl=1*k6rjsa*_gcl_aw*R0NMLjE3NjI1NDY5NjMuQ2p3S0NBaUF6cmJJQmhBM0Vpd0FVQmFVZGNKRWg3clZ3b3dXRmM2UGxnazdkaE8zeVNqM2lEREczaGFhUTk1SUFETGJhcldkb3k4ajlSb0M2MFFRQXZEX0J3RQ..*_ga*MTQ0MzA1MzQ4Mi4xNzUyNzEzMTU1*_ga_SR0PMVVEN1*czE3NjMxMjM4MjQkbzE1OCRnMCR0MTc2MzEyMzgyNCRqNjAkbDEkaDgzNjY0ODE4Mw..

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DBX Cross Dispersion Method

The other end of my main listening room is a small 5.1 Home Theater shown in this Virtual System (above TV is artwork, not a speaker).

https://www.audiogon.com/systems/9511

The rear L/R are behind the sofa, laying on their backs, using the 6" space between the wall and sofa like a sound channel/horn,

a single 1,000 watt self-powered sub just for Jurasic Park Dinosaur Stomps is out of sight

 

Front L/R , and the Alternate Toe-In Virtual System, are DBX Soundfield 100

https://www.hifi-classic.net/review/dbx-soundfield-100-135.html

The resultant WIDE CENTER is created by what I call DBX Crossfield Dispersion, there are 3 tweeters, one each of the front faces, and the Third on the outer rear face,

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For my Main 2 Channel Music System, for two listeners, I alter the toe-in so each listener is closer to one side, yet the dispersion is more direct from the other side, which works quite well.

My speakers are over 100 lbs, on 3 wheels, the tops are tilted, Donna’s stuff on top, they stay put, nothing vibrates off them, yet I am able to re-position them as needed. (I used spikes in the past, I perceived no advantage, flexibility was lost).

toe-in for one centered listener

Toe-In for two off-center listeners, pivot without moving the inside front corner

other DBX designs

https://www.hifi-classic.net/review/dbx-soundfield-10-509.html

https://www.hifi-classic.net/review/dbx-soundfield-sf5000-571.html

https://www.hifi-classic.net/review/dbx-model-228-272.html

https://www.hifi-classic.net/review/dbx-4bx-352.html

my dbx 100 link repeated

https://www.audiogon.com/systems/9511

 

 

toro3 OP

I have 1 room: 2 channel music one end, small home theater across the other end of the room. the 2 chairs in the middle simply turn around as desired.

dbx soundfield 100’s are for the home theater.

I use their principle of cross dispersion with my music system sealed box speakers.

They are Custom Made, similar to Cornwalls, 15" woofers, horn mid; horn tweet, but the innards are all electrovoice drivers, crossovers, L-Pad controls.

here’s the innards

the parts all came from a 1958 Fisher President II Console I inherited from my Uncle Johnnie in 1973. That’s how I got hooked on great sound and tubes

https://www.audiogon.com/systems/11420

The unit was up on 8" bronze legs, the woofers fired downwards, I made taller enclosures to face them forward, increase cubic feet, and a rear vent that is closed here, it was open in prior location with no wall behind.

 

Wives should come with Wheels for Speakers!

I’ll need to take some measurements, but the chair(s) are further back than the speakers are wide apart.

this recording is incredibly lifelike

I recently listened at my friend’s house, his is nearly an equilateral triangle, less bass than my system, amazing realism, but his spikes prevent him altering his toe-in, so unless you sit dead center, one side drops out fairly quickly.

I listened the next day at my home, it was different, bigger but less intimate, better retained imaging off-center.

Next, I moved closer, sat at the spot at the dining room table where I clean LPs while listening, now an equilateral triangle, speaker toe-in unchanged. Now it became as intimate as my friend’s system. A similar ’slightly out’ toe-in.

This Panorama Photo gives you a better sense of arrangements in my setup, you can just see the front of the listening chair(s). It’s not as big as it appears, I’ll measure

Distances appear normal in this photo, toe-in adjusted for single center listener

 

A lot of people would never have a dining room table in the middle, and yet all imaging is Phantom, they are Mirror Imaged, my horn tweeters are high and inside; two way horn mid high and outside, the 15" woofer below. all tilted up, toe-in in, and L-Pads calibrated via test tones and spl mic, final by ear.