Tekton Double Impacts

According to the specs the Ulfs are 1db more sensitive than the DI's.

On my DI's I changed the woofers to the eminence betas which gave me much better defined bass.I changed the crossover parts to much better as well,I only use my subs for some music usually they are turned off.

Kenny.

Jeffery:
Overall would you say the ULFs have greater dynamic headroom than the DIs? In particular, am thinking of large orchestral recordings where the ideal is to be very loud but not sound electronically/acoustically stressed. Am getting some of this with the DIs and have found that cleaning up the room's resonance characteristics helps greatly with this goal.
Thanks again for your information. Eric lists the amp limit at 1000 watts -- can only think of the Emotive mono blocks that produce this kind of power at 4 ohms. Getting this as class A power would be another story...
Craig

Jeffrey -

So other than the bass (more and better), midrange and treble (more detailed) all sounding better than the DI, I guess there is not much to talk about :-)

Seriously though, can you go into the "forward" nature of the Ulf. I can take that to be either a positive or a negative. The DI is also pretty forward, so do you mean the Ulf is too forward? Or maybe describe forward in what way?

Thanks.

Jeffrey,

thanks for the update and please keep them coming. The Ulfberhts must be amazing to better the DI's in bass and detail. I'm not surprised they do as Eric went all out with his best design utilizing the best possible components to create the sound he was after. I believe proper room treatment is essential for the best sound with any speaker but even more so with the likes of the DI and Ulfberhts as they produce prodigious amounts of sound. Adding floor to ceiling 2'x2' bass traps in each corner with quadratic diffusers on side and back walls and ceiling really make my DI's sing in my relatively small room with less than 8' ceilings. The Ulfberhts would probably be too tall in my vertically challenged room but the mini Ulfberhts might work.......they fit my budget better too :) I hope to hear the Ulfberhts someday though, I bet they are amazing. I'd really like to hear them with a small SET amp........you get your Ulfberhts yet Teajay? 

Craig, the Ulf's have superior dynamic headroom compared to the DI's. I tested this by playing pipe organ recordings at near-deafening levels. No stress/breaking-up of the music whatsoever. My dad played his piano recordings at thunderous levels, and the Ulf's maintained proper tone all the way. Keep in mind that this is with big amplifiers, The Ulf's happily consumed all the power I could give them.
Vitop, the Ulf's are more "in your face" than the DI's. This is gradually softening, but I know some folks don't like this characteristic in speakers. Just something to keep in mind. In my listening room, the DI's sounded recessed by comparison.
Mac, my listening room is acoustically dead. Lots of padded furniture and thick carpet that soaks up sound. Still, the Ulf's can fill it with sound at reasonable listening levels.