Hey Pro,

I understand what you are saying about the manufacture(s) possibly not accounting for it. They were simpy trying to create a realistic or believable representation of the listening experience of that instrument.

Here's what sparked my question although I realize it's not the same thing but I'll share it with you none the less. I'm in my car driving home listening to a far away FM radio station and the "Stereo" light on my Alpine unit is turning on and off. I'm losing the stereo signal. What do I hear from the speakers. I lose the spatial-ness or directivity of the sounds. But I don't lose any specific frequencies, bass notes are still there, so are the mids, and so on. Stereo light comes back on, stereo signal processed and I'm back in the hall.

I get home, head straight for the stereo unit, cued up a CD and start playing with the Stereo/Mono button. Same results, lose the sense of space, don't lose the actual notes.

I know...It's not the same thing, I wasn't summing signals. But I couldn't help but wonder, "What's up with keyboards?"

Want some more reading? Try these:

http://www.anstendig.org/Stereo.html

I thought this was little biased since the author never really explained "why".

http://www.dogstar.dantimax.dk/acoustic/acoust-1.htm

I thought this was interesting since I previouly read an article about how we have two ears for creating two individual signals to feed to the brain (for directionality purposes), but that the brain processes these signals into one source (mono). We HEAR in mono, stereo is a man-made concept.

I'm not saying that, the article is. I don't know what to say (or think) at this point but I sure do enjoy the reading and learning.

mike