Tekton Double Impact phase issues?

@trytone  - Who is the dealer for Tekton in Houston? Well, I know Dave at Raven Audio a bit outside of Houston, proper, otherwise I wouldn't have a clue.

Are the Liszt speakers in Houston, too? If so, I've heard those. heh. They wouldn't hold a candle to the DIs. Just saying.

I've heard two pair of DIs in the Houston area and nope, no phase issues at all. Oddly enough, at Raven Audio the speakers were about 5ft apart, and at a buddy's house they were about 12ft apart. There was nothing but solid center no matter where I placed my head. I just sat there and enjoyed. and I know phase problems, because I have a friend with some Eggleston speakers that have phase issues out the wazoo!

Indeed it is Raven Audio I hope to visit if I can ever sell my Salks. Am interested in what the DIs do better than the Liszts.  Can you shed any light on what those who have heard the DIs feel is a lack of refinement? Many thanks, LS

Without knowing the crossover frequency and if all tweeters are driven equally and in phase it is hard to comment on phase of the end result.

The tweeters appear arranged in the space that a 9 inch cone would occupy. So in theory it will radiate approximately like a 9 inch cone but without the characteristic cone breakup and steep roll off at mid range frequency and without any decent LF capability. Since treble frequencies have wavelengths of around 1 inch then there is for sure going to be both constructive and destructive interference between the drivers. However, having such a large quantity of drivers it is quite possible that the interference patterns will tend smooth each other out (at an angle and frequency where one pair of tweeters is interfereing destructively another pair is constructive).

Overall I would expect or guess a fairly even "wall of sound" with a dispersion that is not far off a regular individual tweeter with a possibility of some comb filter effects at the highest frequencies which may give the treble a large spacious feel.

7 tweeters of 6 or 8 ohm variety might present an interesting load if run in parallel and crossed over too low - therefore I expect it is crossed over quite high or above the point where the tweeter impedance typically rises to about 25 ohms or more.

As many have commented, this is a speaker that must be heard but in the absence of availability at local dealers for audition, it would be nice to see some measurements showing off axis response.

Seems like an innovative variation on the Bose multi driver approach and I think Macintosh tried speakers designs like this too....

I'm amazed at how "phase issues" and "comb filtering" have dominated the discussions about these speakers with few actually understanding what it means, or how you would measure it.

The proof of the design is in plots of the on vs. off axis response. Stereophile does these routinely in the vertical and horizontal axis. This is an incredibly easy problem to hear and measure and therefore prove whether the Tekton's are any better or worse than other speakers.

I truly feel bad for the designer who has had to defend his designs against mostly incompletely informed critics.

Best,

E

Before jumping all over people for wondering and asking questions, perhaps some might want to reread the original post and remember what  this forum is for.