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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
erik_squires
16,041 posts
 
@mofojo,

If that was directed at me I don't see the dots you are trying to connect.

I've always (starting months ago) said they were interesting and I would probably recommend listening to them based on design and measurements. I've also said that one of the innovations was IMHO getting the price so low for the parts quality. 

I have not however said I liked their looks, had listened to them or that they had remarkable efficiency.

Honestly this discussion has generated a tremendous amount of emotional energy I find a little left out from. I'm not all that passionate either way.

Best,

E
charles1dad's avatar
charles1dad
10,250 posts
 
It seems to me that mofojo was referring to 213runnin.
Charles 
mofojo
2,288 posts
 
Correct
Post removed 
213runnin
914 posts
 
Mofo, no I'm not off the measurement kick.  If a company can't be trusted to give accurate specs to their products, than I wouldn't trust them period.  Send them your wallet if you want, they are not for me.  

I am looking for an end game speaker, and the Sierra Tower is on the short list.  Ascend measures their products carefully, among the other things they do so well for the customer.  But I'll bow out as I've made my points for anyone looking for the pros and cons of speakers by Tekton.
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