Originally Posted by SierraMikeBravo
My understanding of the Haas effect has to do with reflection, not discrete point sources playing the same signal at different distances. The later arrival time of the exact same signal eminating at the same time from another speaker can lead to a hollow sound. How are you dealing with the differences in arrival time if the "hollow sound" occurs (which I find happens pretty often)? Are the speakers arranged in such a way as to be exactly the same distance from the listening position? In that case, it would be a single listener. Also, how are you dealing with the SPL of multiple surround speakers? The addition of multiple side or rear surrounds will lead to an increase in SPL, and if they are not exactly equidistant from the sole listener, the speaker closest to the listener may not be adequate for reference playback. How are you getting around that? Just genuinely curious as to how you are getting around all of this. Thanks.
The brain sums the sounds no matter if it's a reflection (aka mirror source) or a real source as long as it's within the Haas window. ( Might not be correct to call it Haas-effect with a true source from a definition point of view, but who cares if it works the same? )
I have never experienced any "hollow sound" with these speakers, so I've never had any reason to look into it. Do keep in mind that the speakers were designed for this purpose rather than having a new job superimposed on them. Do you use dipoles or direct radiators? These are categorized direct radiators despite the dual tweeter setup. Furthermore, they are phase linear - if that has any bearing on it?
No, as I stated earlier, the speaker slightly in front of you will be the closest one.
The SPL will be set with all speakers connected to the same channel playing. They do not use individual amplification, they are connected in parallell to the same channel. Setting SPL is done by the receiver in the normal manner.
If you hook up three of these to a home theater receiver, that one will run out of power before these babies have a problem. They're recommended up to 250W amplification. Three of them yields a sensitivity of 91dB, so they're not very difficult to play loud with. If you have a very large room then you may want another few, perhaps. There was a larger model previously, but it was realized there was no need for it so it was discontinued in 2006.
I know a few people more crazy than I regarding playing loud (way above Ref), but I never heard any of them having issues with surround speaker capabilities.
am not "getting around it" in any particular way - I'm just leaning on that the speaker designer has done his job well. I've never, ever, heard anyone with these surrounds voice any complaints.
( Well, I have ONE... I need another four for my new theater (currently only have four not in use) and they're not so often on the used market in that particular number.
Anyway, before we drag this out too long, it's not the right thread for it as it has little relevance to 9/11-channels per se. My mistake for showing my graph.