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 2 responses by rotarius

213, we now have patented speakers that have made all other speakers obsolete. You may not poo-poo them and call them ugly!  We need many more Tekton threads.  The Tektonians have made Audiogon great again, deal with it. #MAGA  
This idea that measurements don’t matter is nonsense from people who don’t understand them. The best kits out there always measure well. Look at the measurements done by Soundstage network at the NRC. The THD measurements alone say a lot about how clean your speakers will sound trying to reproduce massed strings and such. But nobody wants to talk about that.
Then again if all you listen to is badly recorded rock, death metal and electronica, you don’t need to worry about measurements, Cerwin Vega type stuff will do nicely.