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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
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.
kdude66
1,200 posts
 
hifiman5,

Check your inbox I sent you a pm.

Kenny.
david_ten
5,480 posts
 
@hifiman5    In addition, as it is with more basic case work, Tekton isn’t blowing costs on cabinets, though one can upgrade at additional cost and build time. Since it is a small operation, overhead is contained.
seanheis1 OP
631 posts
 
1. Internet Direct

2. Basic Cabinets

3. Lower cost drivers

4. Word of mouth advertisement 

5. Profitable upgrade options 

6. Clever engineering 
grannyring's avatar
grannyring
6,576 posts
 
7. Reasonable profit margin.

The High End audio industry is full of outrageous margin pricing. Companies like Tekton and Core Power Technology are making world class products with reasonable margin expectations so many audiophiles can enjoy their products!
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