Interaural Crosstalk And Loudspeaker Setup

My one observation is that the systems with the largest sweet spots and most stable image have very wide and even dispersion/power response.  Perceived imaging is enhanced by diffusion between the speakers and even to the sides. It's not L/R crosstalk that I've heard mess up imaging so much as poorly managed in room reflections and gnarly off-axis response.

Also, digital has nearly perfect L/R isolation vs. analog systems and yet they don’t really image much better IMHO. Some studies have suggested ~65 dB separation to be more than adequate.

I guess my point is, while interaural crosstalk is a real thing it’s not really the problem we might think it is. The bigger issue is probably frequency cancellation in the center, making center channel speakers really useful for movies and 3 channel recordings as well as mono.

why is this a concern ? try a headphones i suppose.

Humans have evolved to hear from both ears at the same time thats how we localise things. you may just make it worce. we can tell distance, angle to sound, etc from the different time the audio araives at each ear. I think your just going to confuse your ear brain interface. 

My room is under my acoustic mechanical control...

My speakers heavily mechanically modified too...

I also use a mechanical separation between the 2 speakers for my near listening situation...(unpractical for most people.)

I remember visiting a retailer who had a large acoustic panel, maybe 6 ft by 6 ft, that was supposed to be placed between the loudspeaker, but perpendicular to the plane of the loudspeakers. The idea was that the panel would lessen the crosstalk at the listener position. I never heard a demo of the product so I have no idea if or how well it worked.

If you want to know about crosstalk read articles by Edgar Choueiri the Specialist of this concept in audio ...

Humans have evolved to hear from both ears at the same time thats how we localise things.

In Nature we hear one sound source for the melody of a bird for example.

In a living room with speakers we hear 2 sound sources for the same melody which impede the naturalness and information of spatial dimensions of the perceived sounds.

2 speakers stereo are unnatural situation .

In a word for our brain deciphering our 2 ears channels there is 4 speakers in the room:2 actual and 2 virtual because of the time interaural differential function.

Choueiri explain it all and his mastery of the subject is complete. Read him.