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 9 responses by mr_m

I have (the proverbial) no dog in this fight. Tekton has gone from a smallish company with a limited amount (and affordable) speaker line to a company with many complicated (and somewhat expensive) larger line of loudspeakers. Throw in the optional mods makes it even more confusing. It seems as if the different levels somewhat overlap each other. I would like to listen to Tekton but I know of no one in my area that has them. A dealer network would be nice but I'm sure that would substantially raise the prices. I too, have some concerns about Tekton. Especially hearing how they may have performed poorly at the LA Show. I'm not sure about this as I don't know all the details of that event. I don't believe that some of the posters are being highly critical here. They just want some answers to what appears to be an incredibly hyped product. I have no doubt that the DI owners sincerely believe in the performance of the product, but should not be quite so defensive of the "new baby."IMO.
Kenny,
I don't feel that way. (not ready for primetime). I think I am open minded enough to judge the DI or the whole Tekton line for that matter on a lengthy listening session. And even then it would just be my opinion, for better or for worse. It really intrigues me to see a product such as Tekton glean so much favorable response. I've never seen anything quite like it in my 45+ years of being an audiophile. If I could find a pair to listen to, and possibly be able to get a pair in my home I would welcome it. Even consider buying if it sounded better than what I have. I'm just a little apprehensive on taking the plunge and ordering a pair. Unless the manufacturer is willing to accept shipping and insurance costs both ways if I decided I didn't want them for whatever reason.
Cheers,
Tim
david_ten,

If you were referring to me as one of the two who said the DI's fell on their face. Well David, I didn't say that. I said they MAY have performed poorly. I also said I couldn't be sure as I didn't know all the details (facts) of that event. I'm failing to see your point here. So what if it is NOT a room set up by the manufacturer Tekton. So what If it is NOT a dealer set up for Tekton. (I don't believe Tekton has dealers as they are mail order, correct?) So what if the room was NOT set up solely for the display of the DI's. If I were going into that room as an educational tool for low cost systems I think I would have been highly disappointed to hear what they heard also. Considering the fact their was another system there that sounded very good. If it takes the manufacturer to be there to make sure the DI's sounded their best then why was Eric of Tekton not present??? At a trade show of that magnitude, SOMEBODY from Tekton should have been there. From what I read it sounded like there were plenty of speaker systems in the price range of the DI's that were proving their worth. Don't get me wrong, I will definitely sing the praises of the DI's or any other Tekton speaker for that matter, if it sounds truly musical to my ears. This is what I am talking about with some of you in defense of the "new baby."

Tim
david_ten,

Rest assured, If the DI's sound to me like the praise they have been getting, they will grace my living room for years to come...:)
333jeffery,

In my case, this is not true. As I said, I will give them a fair and impartial evaluation. I would do this for ANY loudspeaker system..... There are those who hear, but do not listen........
Kenny,
I agree that the 800hz crossover point, along with the distance the woofer is away from the other drivers could be a bit of a problem. Maybe the low mounting of the 8" woofer was used to extend the lower frequency of that driver using the floor for some boundary reinforcement. The compromise, I would believe, be in the lower midrange. I couldn't imagine this speaker sounding anything like the DI's.....IMO
Tim