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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
james_w514's avatar
james_w514
286 posts
 
Yesterday while evaluating DI’s my friend said "I can’t quantify it but they are the best speakers I have ever heard. They are musical instruments"

To me this rings true. When I switch to one of my other speakers I am back to the DI’s in less than an hour no matter how good the other speaker measures in room. At the very least my brain is being tricked by what I am hearing and I couldn’t be happier with the result. If I saw a thread revealing a "gotcha" moment exposing bad measurements it wouldn't change my feelings about the product. 
tektondesign
205 posts
 
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 


tektondesign
205 posts
 
And James... your ears are not "being tricked". This is real my friend. This is real quantifiable science and forward thinking innovation.
missioncoonery
1,215 posts
 
Eric.....If you have few buyers returning speakers then why don't you simply take them back on your dime.If what you say is true seems a no brainer as that's one of your stumbling blocks with me.I would also like to see reputable stereo mags review what you offer.Seems like a positive way to convince those on the fence.
chrshanl37
835 posts
 
missioncoonery with all due respect you seem hell bent on finding negative things to say about Eric’s speakers. Why? If you don’t want to come out of pocket and try them for yourself then move on and enjoy what you have and leave this thread to those that have put up the money or at the very least have heard these speakers. Judging from the posters here and the amount of gear they have owned I find it difficult to believe these are a flash in the pan flavor of the day.

I don’t have a dog in this fight as I’m not an owner of Tekton speakers but I am mighty tempted to get the DI monitors after reading through the recent threads. Until that day comes I feel I have no right to comment on them good or bad and neither do you.
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