Omnidirectional speakers. The future?


I have been interested in hi-fi for about 25 years. I usually get the hankering to buy something if it knocks my socks off. Like most I started with a pair of box speakers. Then I heard a pair of Magnepans and was instantly hooked on planars. The next sock knocker was a pair of Soundlabs. I saved until I could afford a pair of Millenium 2's. Sock knocker number 3 was a pair of Shahinian Diapasons (Omnidirectional radiators utilizing multiple conventional drivers pointed in four directions). These sounded as much like real music as anything I had ever heard.
Duke from Audiokinesis seems to be onto the importance of loudspeaker radiation patterns. I don't see alot of other posts about the subject.
Sock knocker number four was a pair of Quad 988's. But wait, I'm back to planars. Or am I? It seems the Quads emmulate a point source by utilizing time delay in concentric rings in the diaphragms. At low volumes, the Quads might be better than my Shahinians. Unfortunately they lack deep bass and extreme dynamics so the Shahinians are still my # 1 choice. And what about the highly acclaimed (and rightly so) Soundlabs. These planars are actually constructed on a radius.
I agree with Richard Shahinian. Sound waves in nature propagate in a polyradial trajectory from their point of source. So then doesn't it seem logical that a loudspeaker should try to emmulate nature?

holzhauer
Billhound, I see you have taken the time to consider both sides of the omni vs. conventional loudspeakers. If I had never heard a properly executed set of omnis I think I would have been convinced by the arguments of Opalchip and Summitav. Their logic makes a lot of sense.
Duke makes a lot of sense also. If delayed reflections help us perceive the music to be more realistic, then omnis have a leg up in the way they intentionally send music in various routes that will no doubt delay arrival time at the ear.
I found Shahinians in a strange way. About 15 years ago I set out to buy the best stereo money could buy. It was a goal that I had kept my sites on through college and I was bound and determined to do it. At the time, the Wilson Watt Puppies were all the rave. I found a shop in Niles (Chicago suburb) called Rosine Audio and arranged an audition. The speakers sounded great. (All Spectral electronics didn't hurt the sound either.
The next day I was talking to one of Larry Rosines sales people and I asked him what speakers he likes to listen to when the customers are gone. He immediately said Shahinian. He had the Shahinioan Arcs avaiable but no Diapasons. I eventually got to hear the Diapasons. I can tell you with no amount uf uncertainty that they walked all over the Wilsons.
In my Quest, I listened to a lot of expensive speakers. The huge B&W 800's, large Thiel 7's, Martin Logan Statements, Avantegarde Uno, Duo and Trio, Magnepan MG20's, Pipe Dreams, ProAcs, Dynaudio, Meadowlark, Joseph Audio, Soundlab Electrostats and Quads. The Soundlabs, Quads and the Shahinians were the best of the bunch. As you can see, I ended up with the Shahinians.
With the Omnis I am free to move about the room. The music sounds great anywhere you sit or stand. The idea of sitting with my head in a vice to obtain perfect alignment all the while surrounded by an acoustically dead anechoic chamber so as to obtain the theoretical ideal of zero reflections doesn't appeal to me at all. I recall in listening to the Wilsons a very analytical experience. The speakers were revealing all the flaws in the recording yet not capturing the essence of the music. I'm not trying to offend those who enjoy the analytical experience. It's just not for me. The sound of the omnis is so real that it is just stunning at times. Never do these reflections conjer up thoughts of distortion. Only real live music.
It doesn't surprise me that Shahinians sound good outside. In a lot of ways, they are like four conventional box speakers placed back to back. In a non reflective environment, a majority of what is heard wil be the direct sound from the portion of the speaker pointing at you.
It's too bad Shahinian doesn't have any active dealers in the US. Like billhound, most people aren't going to purchase a speaker without hearing it first. Shahinians' European distributor goes to a lot of shows and has made the Shahinians immensely popular in Europe. For those willing to take a little risk, I suggest buying the Shahinian Obelisks used for $2000 or less. In that price range, you could unload them without getting hurt if you decided they weren't your cup of tea.

Sean...with regard to percentage of reflected sound...I used to work as an usher (unpaid) at the Tanglewood summer music festival, and so I learned something of the acoustics of the huge shed in which the BSO performs.
Seats up front can hear well. Seats slightly further back, but still in the higher price range don't hear well at all. The very last few rows, way at the back, hear well again: almost as well as those expensive up-front seats. The reason is reflective panels that are suspended about 40 feet above and 30 feet behind the last row, and angled down. Reflected sound can be loud.
El: As sound travels further, it loses intensity. This is true whether it is a directly radiated signal or that of a reflected signal. The only time that one encounters increased intensity at a greater distance from the originating source would be in the following situation. The first is when one is stationed in an area where a node occurs in the listening environment. The other example is at the far end of some type of acoustic coupler i.e. the increased output at the far end of a horn throat. Otherwise, the shortest, most direct path will have the greatest acoustic intensity possible, especially at mid to high frequencies. Sean
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Sean...Come to Tanglewood and listen for yourself. The "last row" effect is well known.
El: I don't doubt your observation. The one point that i would make would be in question form to you. That is, "Is just one or both of the principles stated above coming into play in the last row?". Sean
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