2. speakers
  3. 130656-80492

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
kdude66
1,200 posts
 
grannyring,

+1 on everything you have said in your previous post.

The current audio market is very slow and is generally a buyers market not a sellers.

I watch certain categories of components on audiogon like a hawk and really good stuff at decent used prices aren't selling.I see this pattern on a daily basis and I'm sure you do as well.

Kenny.
murphythecat
181 posts
 
why dont they at least tell us what are the crossover points?
kdude66
1,200 posts
 
Eric probably would if you contact him via phone or email.
seanheis1 OP
636 posts
 
I'm sure he sees it as intellectual property. 
kdude66
1,200 posts
 
Probably not,
When I first called Eric I had read a little about the DI's and I put together a list of questions for him and that included detailed exact crossover points,So I could get a better understanding of the unusual and different design of this speaker.

He answered every one of my questions and after getting my DI's, I have confirmed that every detail that he told me is spot one.

When I read his patent that he has several times I found that to be kinda Vague and generic,so I really won't comment on that,Honestly don't really care.

Kenny.
More to discover