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
 an invite for an in home demo with and against different amps and speakers..can't ask for more than that.. that might lead to a Buy and Try.or that Fava Bean dinner
Meanwhile back here on planet earth...

We now have Michael Wright at Stereo Times pulling the Wilson Sasha's out of his rig for the Double Impacts because they perform to a higher level. The fact is... I've had multiple people to call me and email me to inform me of the fact the DI's sound superior to the Wilson Sasha's.

Here's a quote from the REAL Double Impact Audiogon thread from a few days back:

"Just to be clear on the statements I made about the DI's and my Sasha's a couple of months ago; the DI's, overall, did outperform my Sasha's. From the mid-bass up through their hi frequency performance, they were more enjoyable and more musically engaging than the Sasha's. The level of performance and achievement, especially in the all important lower mid-range to upper bass region of the DI's, is exemplary.  Eric Alexander and his team should be lauded for what they have accomplished.  To gain this level of performance is commendable for a speaker at any cost, but at $3,000???  It should have been interesting, sitting around the Tekton board-room table and hearing Eric discussing the lofty design goals he had for the DI's, then share with his confidantes that he could do it all for around $3,000 retail.  I'm sure somebody snickered and said "Yeah right".  All I can say is interested parties should get their speakers soon before Tekton figures out what they have on their hands and puts their speakers thru a well deserved pricing restructure." - Michael Wright  

I also received a note from a client on Monday informing me of the fact the Impact Monitor outperformed the B&W D3's. A month ago a client called me to inform me the Impact Monitors has bested the Vanderseetn 7's.

We're doing something really special here and this is audio news. There's literally thousands of loudspeakers to choose from these days and the lowest common denominator is this: do you want to hear every subtle nuance and detail contained within your source material (music) or simply most of it..?!   

Eric Alexander
President/CEO Tekton Design LLC   
yeah,what he said.I have the Pendragons now and couldn't be more happy ..maybe someday the DI's
So it sounds like a professional reviewer prefers the DI over the  Wilson Sasha, and that's fine.  I may or may not agree with his taste when it comes to speakers and gear.   What I don't get is why Tekton is withholding the  frequency response graph of their speakers, so prospective customers can see how the speakers compare with their own, or with other brands.  

Tekton is withholding this information because they don't want it known, there is no other reasonable explanation.  And to suggest that all other speaker brands don't give every subtle nuance is just more over-the-top ad copy.