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 stfoth

@213runnin. Can't believe I'm jumping in here, because I am as skeptical as probably anyone on the implications that everything else is obsolete, that they "slay" well-reviewed and established $30k-ish "competitors," and that the patent would ever win the day.  Quite frankly, some of it is a bit off-putting, but no doubt that the designer is proud of his designs, and, judging by the feedback he's getting, seems he has reason to be. 

I've never heard any of the Tektons.  Have you heard them?  Are you trying to bait the fanboys?

Most interesting, to me, in all of this banter on A-gon and a few other sites, is the absence of folks, who have given or can give credible first-hand accounts, who have said much less than "the Tektons are pretty good, but didn't work for me" or "I don't think they actually compete with many speakers many times the price, but they're good for what they are."  I haven't seen anyone say anything like, "I bought them based on the hype, and as much as I wanted to like them and as hard as I tried to make them work with otherwise good matching gear, they are just overpriced cheap crap and sound like garbled poo."

If they are out there, could someone share or point in that direction?

Seems, of course, they won't be to everyone's preference, but most of the reports suggest that one would get at least a speaker punching in its weight class and possibly/probably above, if not at $30k+, to the extent price may generally corresponds to performance/quality.

Anyway, sure, if they missed the mark by 6db, some 'splainin' should be in order.

I'm not defending anything or anyone, but, at least for the DIs, looks like those tweeters retail for about 55 bucks each. There are 14 of them.  770 bucks just in tweeters in a $3k speaker is already quite a budget ratio compared to most speakers using OEM drivers.  Of course, Tekton isn't paying retail, but neither are the other companies using "better" OEM tweeters.

This split between instant fanboys and haters who have not heard just seems really odd.


@craigl59. Pretty sure you and I are on a similar page.


I'm actually looking to try a pair--figuring out which ones might best suit the room/gear and then giving Tekton a call.  Not based on the patent or thinking my current speakers are obsolete, but primarily based on so many folks, who I have no reason to doubt, pretty uniformly giving neutral to raving accounts.  If they were truly crap designs with crap parts, I would expect that, by now, someone would have tried them and so stated--and then forced to defend that statement by the fanboys.  :)  Haven't seen it.

Worst case is I buy a pair, don't like them, send them back, eat some shipping, add a comment to the tribal history, and then get jumped on for ruining them with crap cables or something.  Fair enough.
@david_ten . Thanks! 

"then get jumped on for ruining them with crap cables or something." Kind of a joke. Throughout various threads, if not the Tektons in particular, there’s plenty of comments about gear that someone didn’t like or didn’t work out being met with comments about feeding crappy gear, having tin/stone ears, having crappy rooms, being trolls, etc. Maybe I spent too much time in the cable/fuse/tweak threads. :)

I would expect if someone actually bought the Tektons and posted about them being the worst speakers the poster ever heard and such, that person would be "challenged" by others.

@kdude66 Thanks.  Doesn't seem anyone who's actually bought them has completely trashed them, so that bridge may never be crossed, which is remarkable.  I think you suggested the Brilliance or Electron in another thread.

"Horrible small carpeted room, but thankful to be taking over the "guest room"--roughly 10.5' x 11' with 9' ceilings, so, of course, they'll be arguably too close to a wall with a listening position probably no further than 7-ish feet in the triangle. A closet can be opened behind the listening position, for whatever it might be worth. Most likely to be powered by PSETs at approximately 35 watts. A Rythmic sub can be used. General preferences are a laid back sound with good detail. Sensitivity to "shoutiness" and harsh highs (e.g., Klipsch HT tractrix horns as a personal no-go). As an example, primary speakers in other rooms are now Canton References and a recently acquired pair of Spendor s3/5r2."

Also have an Inspire 17w SEP that might be tried, but that's probably going in another room switching between Omegas and Princess Model 2s.

If Tektons work out, they will displace Salk HT3s to the "gym" (bedroom with some dumbbells and a treadmill that get not enough use, sadly) with solid state.  Not moving toobs to the "gym."  Makes me nervous enough in the "guest" room.

I'll try calling Tekton in next couple of days, but I suspect they might be busy working on the Super 1812 Double Mega Ulfs a couple of folks designed on the DI thread.  :)
@kdude66 .  Thanks.  In your estimation, the latest magic is from the seven tweeter array?  I'm not sure how the vertical three tweeter are wired/crossed.  From the site, I thought maybe they were set up similarly, just with three.  Maybe that includes the Enzo 2.7.  A good question when I call.

@craigl59.  I've been using a couple panels from GIK, here and there, especially behind speakers and behind the listening position when either or both are "too close" to the wall.  I'm already pushing the WAF limits...  If I start putting pillows around, there will be blood.
@213runnin. I think specs should be accurate, too, and they certainly can give a basic idea of what's happening and whether the item may have issues in a system.  I also agree with the implication that a few folks made that a company that professes to have made everyone else obsolete might be rightly asked to "show me," even as many, many other companies do not.  Tekton, of course, doesn't have to any more than anyone else, and it's up to the consumer to decide, as you have, whether that's a deal-killer.

BUT, take a look at these, and, if you would, let me know what you think, particularly in relation to the frequency response spec v. the measurements.

https://www.stereophile.com/content/canton-vento-reference-1-dc-loudspeaker-measurements

Fraud?  Untrustworthy?  Measurements the end game?

I don't believe Canton published its own measurements.  These were and still are among the "best" speakers I've ever heard, although I admittedly don't make it a habit of auditioning $30k+ speakers.
The Electrons were Tekton's recommendation for the small room with tubes.  Designed, apparently, to get much of the DIs' sound in spaces the DIs may be too large (physically or sonically).