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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
kdude66
1,198 posts
 
Sean,

So if you asked your friend about the DI's already knowing pertinent details as I've mentioned why are you wasting our time with this nonsense.

Have you actually listened to these speakers or are you just trying to convince yourself they are not for you.

Just wandering,I go where my ears lead me and really don't care about specs at the end of the day.But I still can't help not measure and test sometimes just to back up what I hear.

Kenny.
seanheis1 OP
359 posts
 
Sean,

So if you asked your friend about the DI's already knowing pertinent details as I've mentioned why are you wasting our time with this nonsense.

Have you actually listened to these speakers or are you just trying to convince yourself they are not for you.

Just wandering,I go where my ears lead me and really don't care about specs at the end of the day.But I still can't help not measure and test sometimes just to back up what I hear.

Kenny.
Hi Kenny, since you are being blunt, I will reciprocate. I didn't blindly trust the pertinent details that you've mentioned so I went to my expert to verify those details. He had a different explanation for the tweeter array and comb filtering, which I posted. If you feel like this thread is a waste of your time, then of course don't follow it.     
kdude66
1,198 posts
 
So does that mean you are going to step up and buy a pair and listen for yourself?
missioncoonery
732 posts
 
I found it very informative...and I will add that yes a group of guys are stomping their feet in praise of the double impact speaker on this site...npt so much ekse
missioncoonery
732 posts
 
Sorry my phone speaks for itself...what I was trying to say was not so much on other sites...for me the fact that Tecton hasn't posted any pertinent info using only the same verbage on each speaker,the lack of quality drivers used makes me take pause with scepticism 
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