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

If you are ever around southwest Michigan, give me a holler, although it appears you don’t need much, if any, help with your system(s).

@elliottbnewcombjr in passing I vaguely remember hearing about DBX Crossfield Dispersion Method, but quite honestly never researched further until this evening. Do you need a specific speaker for this method? I’m intrigued because there was mention of greater soundstage width that provides a stronger sense of atmosphere. Your virtual system is exceptional, especially with the amount of detail that’s discussed concerning placement - maybe one of two systems that has this much content about placement.

@tcutter I’ve never been to Michigan, but every person I’ve met from that neck of the woods has been pleasant to interact with down here in AZ, as well as other travels. I’m sure it’s beautiful up there with the leaves changing. That’s one of the things I miss about Seattle. 

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

 

 

Slightly off topic: I run Duevel omnis which are generally believed to be far less critical on positioning.

Far from it! Even millimetre adjustments have profound impact on soundstage localisation and bass response as well as overall transparency. 

In addition proper room conditioning with bass traps in the corners and first inflection points as well as proper floor and ceiling damping have direc impact on proper positioning. 

checking once or twice per year after having established optimum poaitions tends to not,result in changes unless there have been major equipment changes.