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

Showing 10 responses by tektondesign

Respectfully, this thread is pathetic.

With over 30 years experience, 65 commercially available designs under my belt... the garnering of many 'product of the year' type loudspeaker awards... many years of compelling professional and amateur reviews and we're still seeing stuff like this pop up on occasion. How sad.

Respectfully, do you really think I'd bring a product to market that contained the showstopping flaws you've accused me of?! It's so sad to see people attempting to trash a product they've never heard nor would ever own. Its irresponsible to trash something being spoken about in a positive light that you don't personally have your hands on.

For the record: the DI loudspeaker is a gamechanger and it's here to stay folks!

Do you want to hear every nuanced detail contained within your favorite tracks, or just some of it, and at the very best with some other brand simply most of it...?! If you want to hear it all that's what we do.

This speaker is linear and accurate, this alone short-circuits the comb-filtering accusations. And yes, it knocks off some very expensive heavyweight loudspeaker models and I've got a pile of documentation that proves this too. 

Listen to the loudspeaker and judge for yourselves. And focus on this... the Tekton DI's have 4 patented design elements that have never before been applied to a loudspeaker and they sound amazing! 

Eric Alexander - audio designer


Thanks Kenny!

And there's literally hundreds more just like you. Thousands more if you wrap the full Tekton lineup into the equation.

If people saw our rate of return for the DI's they'd be shocked! That topic alone speaks volumes of truth as to what this speaker is and does. Regarding rates of returns... I'm not saying.

We're not a mainstream company, we cater to audiophiles and music industry professionals, and with a demographic like this, we've got the most discerning and critical evaluators on earth. Fact is, they appreciate and like what we do.

I've discerned over the years, the biggest gripe the critical types have with me is my decision to not publish measurements and/or extremely detailed loudspeaker specs. This really sends the tweakers into orbit! I design and build 'audio engine's'. Roger Penski, an internal combustion racing engine master said: "If you say anything to anyone, it's like cutting your paycheck in half." I appreciate his sentiment and wisdom.

Eric Alexander - audio designer
I've said for decades loudspeakers are musical instruments. Why we clump them into a branch of electronics is a big mistake.

A bit of exploration and one will discover Tekton and ZU have about zero in common. We'll, I guess we're both in Utah but we certainly don't emulate each other. We have differing audio philosophy across the board. Sean Casey is my freind of upwards of 30 years now and we worked together daily for years - a great friend and professional. Truth be told, we taught each other a ton of stuff. 

Eric Alexander - audio designer 


And James... your ears are not "being tricked". This is real my friend. This is real quantifiable science and forward thinking innovation.
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   
John Atkinson did publish Tekton Measurements, this was the Enzo XL a few years back. I'd say we passed his tests and John had overall good things to say about the Enzo XL. And KEY to this dubious thread is no-comb-filtering reflected in John's measurements.  

Eric Alexander - audio designer

Once again, and for the record... why I choose to not publish measurements:

"I've discerned over the years, the biggest gripe the critical types have with me is my decision to not publish measurements and/or extremely detailed loudspeaker specs. This really sends the tweakers into orbit! I design and build 'audio engine's'. Roger Penski, an internal combustion racing engine master said: "If you say anything to anyone, it's like cutting your paycheck in half." I appreciate his sentiment and wisdom."

Eric Alexander - audio designer
You know... I really wished you all could grasp what I'm doing here. The clairvoyance going on here is crazy. Respectfully, comb-filtering was an element I carefully accounted for to avoid at all cost.

The "secret sauce" is the patent. That's it! Nothing else. Mitigate the moving mass and align things properly and the results speak for themselves. People are discerning the proper balance of harmonic content compered to the fundamental tones in their music.

Question: do you want to hear all of Sgt. Pepper's Lonely Heart Club or just most of it?! If you want to hear it all were the only ones that can do it and we have the patent that proves it. I find it fascinating that audiophiles will spend over $10K for a DAC that is precise and accurate and they pipe it through loudspeakers that literally dumb it back down.

Let me reiterate... no loudspeaker in the history of audio has been designed like this and it doesn't take cluster of tweeters to accomplish it - stay tuned for more.

I was so excited about the design that I reached out to John Atkinson at Stereophile as soon as I was confident we had an amazing loudspeaker created. Sadly, I haven't received a reply from John to date.   

Eric Alexander - audio designer 
Sean,

You have so much to say about this and to the best of my knowledge you've never called nor have you made the purchase - the reason you started this thread. To the best of my knowledge you haven't auditioned the DI's either. I encourage everyone to call me directly over just making the online purchase. You also keep lumping me with ZU. Respectfully, I'm questioning your motives here. I think it's time that you make the purchase or move on. At the very least you should call me to discuss the nature of the design and loudspeaker fully. 

Zu and Tekton reside in Utah and that's it. We have ZERO in common with ZU - nothing.

Eric Alexander - audio designer
801-836-0764