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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
david_ten
5,480 posts
 
@mikirob  I'm glad I was able to read it, then. : )
mofojo
2,267 posts
 
Mine was removed as well. Kid gloves people. 
hifiman5's avatar
hifiman5
1,832 posts
 
Hey Tekton fans!

I ran across acrimony regarding Tekton fans on another thread tonight. I am totally new to Tekton and have no bias against them.  In lieu of reading this entire 7 page thread can someone explain how Mr. Alexander can deliver so much (11 drivers) in the Double Impact and a competent crossover network for $3000.00?

What's the secret sauce?

Just wanting to learn what allows the Tektons to do what people attest to at such a modest price point.

Thanks for illuminating me.
charles1dad's avatar
charles1dad
10,249 posts
 
Hifiman5,
This speakers are sold direct which will reduce the retail price.
They could simply be "under priced" for the performance rendered. I had an opportunity to hear the Double Impacts driven by my 300b SET amplifier earlier this week. This is a very good sounding speaker.

I would remind you that the negative comments directed toward this speaker are from people who haven’t listened to them, or consider them unworthy due to their cost. In my opinion you don’t have a valid opinion of an audio product if you haven’t heard it.

I’m well aware that this doesn’t inhibit unsubstantiated speculation, conclusions  and opinion.
Charles
hifiman5's avatar
hifiman5
1,832 posts
 
Thanks @charles1dad !  Like I said I am not in any way bashing them.  As you so correctly pointed out, I haven't heard them!!

I'm just trying to figure out how Tekton does it at such low price points.

I gather people just buy these speakers based on testimonials and professional reviews (which are few from what I could find).

The business model of the company is hard to come to grips with.

Thanks for helping me understand this audiophile outlier.
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