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Tekton Double Impact & Comb Filtering

Like many of you, I have been pondering purchasing these speakers but am very curious about the unusual tweeter array. I asked the smartest speaker person that I know (he is a student of Sean Olive) about the design and below is what he had to say.   

"In theory it could work, but the driver spacing means that the crossover point would need to be very low.
He is using the SB acoustics tweeter which is 72mm in diameter, center to center on the outside opposing drivers is around 5.7 inches, which is about 2400Hz. This means that combing would stop between 1/4 to 1/2 of the wavelength (between 1200-600Hz) is where the outside tweeters should start playing nice with each other.
Since he is not using low enough crossover points he has created a comb filtering monster. Now while it's not the great point source that was promised, it's no worse than most line arrays and the combing will average itself out given enough listening distance.

The MTM spacing on the other hand is ridiculous. Hopefully he is cutting the top end off on one of those midrange drivers to avoid combing."

seanheis1
mofojo
2,288 posts
 
Tektons are like a box of chocolates.. until you try them you never know what ure gonna get.
kdude66
1,200 posts
 
I love chocolate almost as much as music.
axememan's avatar
axememan
279 posts
 
Hey,I had chocolates earlier and I'll have some Tekton delivered music tonight " with some fava beans and a nice chianti.”
david_ten
5,480 posts
 
@axememan  Who's your guest of honor? : )
213runnin
914 posts
 
Tektons are like a box of chocolates.. until you try them you never know what ure gonna get.

Exactly, and that is the main problem with Tekton speakers.  Forget about the plain cabinet and low budget looking woofers.  Forget about the bombastic ad copy that Tekton chooses to use on their site.  Forget about the comb filtering issues.  Forget about the badly vibrating cabinet that Stereophile discovered.

Tekton will not tell you how their speakers perform across the frequency range.  Oh, they'll tell you a given model will go from 30-30,000 Hz, but not how close it stays to flat across that range.  And as Stereophile found out, the Enzo measured REALLY badly.  Will a given model have a big mid range dip as the Enzo does?  Will it color the sound to the extent that a given piece of music sounds completely different?  Who knows.

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