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 5 responses by hifial

213runnin

1) Your post said "frequency graph" and not range or response. So that is why some people said that you are wrong about other manufacturers posting graphs. 

2) You are wrong again. 
     Tekton does include frequency numbers on some of their speakers. As an example on one, the DI. 
+/- 1dbl 70hrz - 20krz. Range 20hrz - 30krz. 
On another it is +/- .05dbl with the same measurements. 
Yes, the +/- range below 70hrz is not stated. But I highly doubt it is not in an acceptable range. 

I think what Tekton is trying to stress is that these two speakers are ruler flat in the most critical areas. 

Also l must say that you either have an agenda or are trolling because you continue to mention the Stereophile review which is about A DIFFERENT MODEL. You continue to bad mouth the design and the build. But you have NO personal experience with them. 

Look, you're not entitled to SAVE everyone from themselves. 

Just my opinion. Except the measurements. 
As far as I am concerned I believe that measurements do matter...to a point.
If measurements were all that mattered then tube amps and preamps could not compete with the SS versions as they do not measure as well. Also LPs would not compete with CDs or digital files. But I would never tell someone that prefers tube equipment or LPs that they are wrong and the measurements prove it. They like what they hear and that matters. It would be nice if all we had to do is look at how something measures to know how it sounds but audio is not an exact science as some believe it is. It is complex and we think we know all that can be known. Yet we continue to find that we do not.
Just a few years ago jitter did not matter...then jitter below a certain level did not matter...both proved wrong. There are plenty more depending how far back you want to go.
Of course if something measures very poorly then it most likely will sound poorly. But NO one here knows exactly how the DI or the Ulf, etc measure, yet. And the one speaker that the nay sayers mention, the Enzo, did not measure poorly and JA said so in his overview of the measurements that he did of the speaker. Yes, it had an issue here and there but nothing that would be considered bad. And other areas were very good. So you have to look at it overall. 
213runin, maybe some people are looking at it that you are being combative and attacking. Think about how you express your critic.

1) The thread is about the Tekton Double Impact. But YOU continue to refer to the measurements of the Enzo, a TOTALLY DIFFERENT speaker.

2) You continue to bash Tekton that they do not post +/- dB frequency response. But I have showed that they do in an earlier post.
Below is the current Raimaker (only use this one because you mentioned it as the one you have) frequency response.
  42 Hz - 20 kHz ± 3 dB
Now the one posted on Tekton for the DI.
  • 20Hz-30kHz frequency response
  • Ultra-linear frequency response with ±1dB deviation from 70Hz-20kHz
  • Notice the 2nd bullet point? +/-1dB
    Yes, it would be good to know what it is below 70Hz.

    3) You take issue when someone takes your speaker, Rainmaker, measurements from an old review but yet you seem to have NO problem using the Enzo measurements vs the DI. 

    4) You state that the Rainmaker is made in "North America". Why don't you just say Canada?
    The Tekton is made in North America, the USA.
    No offense to anyone here but we live in a WORLD economy so deal with it. Otherwise you better start walking everywhere because no matter what car you buy some of its parts are made in another country. And that is one example.
    Hey, I have no problem if someone wants to buy and/or support American made or manufactured products. I do it, within reason. 

    5) " (I’ve owned about 15 different pairs of speakers in the last 3 years) "
     REALLY?!? FIFTEEN!! In THREE years!!
    That is FIVE speakers on average per year! About one speaker every 2.4 months. With setup time and tear down time and everything that goes with it that does not leave you with much time to truly evaluate them does it. Even a professional reviewer could never do justice to that many speakers in such a period of time.
    I believe you, it just seems...well lets just say WHY. 
    I am curious, did you try as many amps, preamps, DAC's etc?

    6) You get all defensive and tell people to buy what they want and to like what they want and then add that that not everyone will love what they love.
    That is what others have been trying to tell you.

    And no one is forcing you to post.
    213runnin, REALLY? Your "new" take is to call out Tekton because it has "investors" (and you have NO WAY OF KNOWING if they do or do not) and they MUST  be "partaking" in "activities" "to pump up sales themselves". 
    Obviously everyone who praises Tekton are shilling for Tekton and must be an investor. 
    I had to take myself off the floor from laughing so hard. Wait, please give me a minute, no, make that an hour...I am still laughing 😂. 

    And even if Tekton had investors who cares other than you. 

    Kenny brought up a very valid point and one I was also wondering about. This is a thread about Tekton after all. 

    213runnin, please, stop, you are making me laugh way too much.
    The troll thinks I am protesting too loudly because I am calling him out, lol!
    Why don't you stop leaving your troll droppings on this and other threads about Tekton.

    I have NO financial or any other business interest with Tekton. I just find the impressions of the speaker of interest and also the design. Might I someday buy a pair? Yes, I might, but I could say the same about many other audio products.  

    But full disclosure I am brand Ambassador for Sound Galleries and Taiko Audio. Just in case you want to hold or use that against me.