Tekton Double Impacts

David,
           Teajay does concur that the 2A3 amp does not seem to have enough juice for the Ulf. For some reason the imaging of the speaker was not conveyed correctly with the flea powered amp. It just bunched up between the speakers. When I heard it originally I thought there was something wrong with speaker's imaging abilities. With Aric Kt-88 amp the imaging was much better but the midrange wasn't quite as luscious with the Triode 2a3. It would be interesting to try a 211 amp with the Ulf or one of the Line Magnetic behemoth 219's. I still love the midrange of the 2A3 so I think that the DI SE would be my choice but the regular DI is darn good also for 3k! Ridiculously good for the money!
  I like romantic symphony music and Jazz and use old Beveridge Model 2 electrostatic speakers. I mention this just so you can know my bias in listening.
My wife is a professional singer so getting the midrange is key for me. I typically hate most rooms at the HIFI shows because they play HIFI over music. The DI and up the line can play music.
I want to give a plug for Mike at Audio Archon who is as true of an audiophile  as you ever will meet. You definitely are in good hands with him. He has great ears as an even better guy.

@mac48025 - It’s not so much about bass output or SPLs but closely matching the woofer with the servo amp which leaves the main amp to only drive the mids and tweeter.  Jim Salks Exotica 3 are a prime example of what I’m thinking about.  Will be exciting to see what Eric comes up with to further refine and mate with his excellent tweeter array.  

Good stuff baranyi!

Yes, baranyi (Bob) is correct regarding my personal favorites, here's a few more details:


1)  AS I have stated before on this thread the combination of the LTA Micro-ZOTL and the Triode Labs SET 2A3 is my reference for either the DI's or the SE's.  When I ran the experiment of driving the 2A3 with other preamps it became to "slow" and lost the speed/kick/dynamics that the Micro-ZOTL provides.  But, the combo/synergy between the two is heavenly on the DI's/SE's.

2)  However, on the Ulfberht's this combo still provided the beautiful tonality/timbres and "meat on the bone" 3D imaging, but the speakers themselves did not quite disappear in the sound-stage as the DI's did with this combo.  However, with the Micro-ZOTL and Aric's SET KT-88 on the Ulf's these big monsters completely vanish like there smaller siblings.

3)  Yes, I give up a very slight "romance/intimacy" in the mid-range, however, it's still very beautiful and then you get more precise imaging and as I mentioned the Ulf's do the disappearing act.  My hunch is that its not the wattage between the two amps or the type of tubes, but that Aric's amp drops more current then the 2A3 amp which controls the Ulf's better.  Remember the Ulf's are slightly more efficient then the DI's, so there not more power hungry,but there a lot more transducers to drive (total of 21). 

  

I was hoping the tweeters, midrange, and mid bass woofers were in a separate enclosure.

Clement Perry, publisher of The Stereo Times, provided a dose of reality for the many high priced speaker manufacturers in his show report on the Tekton DIs.  See http://v2.stereotimes.com/post/rmaf-2017-page-4.