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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
grannyring's avatar
grannyring
6,646 posts
 
Sean, if your intent was to post it as a question, then we all see the usefulness of it. Your post does not come across that way when you read it the whole thing. This is exactly what @charles1dad said earlier. I guess there is room for confusion in regards to intent.

I had wrongly assumed you were taking a cheap shot on the design as many others have here on the Gon and elsewhere. Sorry for that.  

I better understand you now and it is ceratinly a fair question to gain better clarity on. My other comments as to wether or not the individual actually tested and listened to the speakers holds. All speculation and sometimes a little knowledge is dangerous without all the facts:)

.
david_ten
5,480 posts
 
I’m sorry, M :) but the post wasn’t directed at you....

.....it was for future readers.

The performance of the DIs was mentioned twice with respect to the LA show. The post from the people whose room it actually was and who felt strongly enough to post on Audiogon, allows future readers to have context, when reading this thread.

I believe the post from Positive Feedback stands up to it’s own merits. Readers can decide for themselves, just as it appears you have.
333jeffery
122 posts
 
I think us Tekton owners should stop replying to these threads. It's obvious that the true purpose of them is to bash these speakers, regardless of their performance. These folks were never going to try them. The old saying is true, "there are none so blind as those who will not see".
mr_m
1,900 posts
 
david_ten,

Rest assured, If the DI's sound to me like the praise they have been getting, they will grace my living room for years to come...:)
mr_m
1,900 posts
 
333jeffery,

In my case, this is not true. As I said, I will give them a fair and impartial evaluation. I would do this for ANY loudspeaker system..... There are those who hear, but do not listen........
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