Haven't heard them – no first hand experience. Tekton is considered, at best, controversial because it's designs stomp on several well known and widely accepted concepts of loudspeaker design. The Tekton website offers numerous glowing testimonies from owners, but avoids showing any standard graphic measurements of speaker performance. That would allow readers to easily compare them to other competing speakers.
In some other 2-way models, Tekton uses 10" woofers crossed to a tweeter at frequencies too high for such a large driver to sound decent. It could easily be beaming and breaking up. I don't know what crossover frequency is used in the Double Impact model.
A claim of sensitivity of 99 dB at 2.83 V (2 W in a 4 ohm speaker) is unusually high. Considering how many loudspeaker makers claim high sensitivities for their speakers but never back up their claims with any measurements, I wonder about Tekton's unverified claim.
Tekton website delivers confusion about speaker impedance. Is this a 4 ohm or 8 ohm speaker?
The multiple tweeters create the very real possibility of interference (comb filtering) that would create numerous spikes and valleys in a frequency response curve. I have some experience with DIY speaker design, and I've never seen any speaker, DIY or commercial, that uses seven tweeters. Tekton claims it has a "revolutionary" patent, which, I assume, involves the array of seven tweeters. I am not impressed because a patent only claims something is different. It isn't required to actually perform better.
The space required by those seven tweeters forces the two mid-range drivers to be mounted far apart enough to create audible cancellations. This depends on the listener's sitting or standing position. This problem could easily be avoided if one tweeter were used.
At $3000 per pair, the Double Impact has many other competitors, including some very good speakers. I could go on, but I'm not impressed by this or other Tekton speaker designs.
