Zu Omen or Tekton Lore

I have owned my Lores for about 4 months now.
I will start by saying they are a great speaker for the money.
The thing they do best is well balanced bass and male vocals.
I no longer need my Epos sub woofer($800.00) built for 2 channel down to 20hz.because the Lore's will reach down into the 20hz. range at 10 watts using a tone sweep cd.just enough to fill in the lower octaves in music.Don't expect menny speakers to do this I'm not claiming a pure 20 hz. signal will shake your house but it is there enough to give Bass 31hz. and up a nice rich added layer of bass not found in most speakers there size and there is no big 60hz. spike like cheap ported subs not great for music.
I have made some major changes to my Lores as I felt there was a huge spike in the upper mid range and I am still working on this with Eric being very supportive all the way.
I have owned alot of speakers and after my son was born I had to get rid of my Sound Labs as having 800 volt electrostatics around a rug rat just won't do, so I was using a pair of recaped older Missions in the mean time.
A freind who owns Zu Omens recommended trying a pair of Lores so in late October I got them.
After 40 to 50 hours of break in a small issue occurred over a weekend,nothing big enough to go into, but I decided to recap the crossover with upgrade caps of the same value UF.
And while I was at it I used upgraded internal cable.
After that the top end did open up and it even sounded more analog,smoother but the bump in the upper mid range was still there only smoother.
The biggest issue I have had is in upper octaves of guitars,harmonicas,violins and female vocals being to sibilant my guess is something is peaked from 4khz. to 8khz.
causing to much bloat there.
Eric has been very helpful with this.
At the advice of a friend well educated in these things He recommended a small mod to tame this node,and it has gotten better reducing the peak from 5.5khz. to 10hz. by 2 db. and solving the problem for menny recordings but Gray Slick is still sibilant in White Rabbit and Sharl Crow's Soak up the Sun also Jennifer Warrens Famous Blue Rain Coat.
I am still working with Eric on this and we will get it resolved but I think the problem is not really in the crossover but the tweeters response I pulled up the tweeter specs from Madisound to find the tweeter rises like a flight of stairs, great above 15hz. where most of us have reduced hearing but a real bad thing where femail vocals are as it makes them sound overly ssssispy.
It's hard to say if my changing caps made it worse or just removed the vial making it more noticeable.
More later.

Thanks for the great info. Wow, you have really been through a journey. Curious: what are you running on the front end (source, pre, amp, etc.). Wondering how much of this is related to that or the room, etc. I say this because I never experienced with my my former Lores - the Audax was a great tweeter. I remember my top end being free of all sibilance with Quicksilver Mini Mites and cary Cdp-1 for source. The Pendragon as well, even with a lesser amp, but my room is also treated a bit so maybe I am a little spoiled with that, yet not the whole story because I've heard sibilance in this room with a different speaker. Sibilance is one issue I have never experienced with these, but when I did in the past it was usually a front end issue. I remember experiencing this with Paradigm speakers, but then again my electronics weren't up to snuff then either. Are you running tubes? Keep us informed...

The replacement caps where the Obbligato gold and Clarity Cap ESA and the shunting cap a Clarity Cap SA.
The internal wire I used is Audison 14 awg. Silver and Sonus for the long run from the binding posts to the X over.
I chose this wire because it is self dampening and non micro-phonic important inside a speaker cabinet.
I also will be upgrading to all mills 12 watt resisters shortly.
http://www.madisound.com/store/manuals/TW025A28.pdf
Looking at the tweeter response graph this tweeter goes from 99.2db. at 3,155khz. to 104.7khz. 14,090 then drops some as it gets to 20,000. Leaving a very large peek at from 5,000 to 8,000 where sibilance occurs in femail vocals and glare slaps you in the face from alot of instruments.
At first it seems like there is some extra detail but it doesn't take log before it starts to bother you.
I believe the tweeter is 90 degrees out of phase so from where the 10 uf cap and resister meet,I soldered a 50 ohm resister to the positive marked wire on the tweeter and this will shunt to ground stopping any oscillation as well.
End result a 2 db. drop from 5.5khz. to 10 khz.
I am going to try a Mills 12 watt 56 ohm and see the results,when my parts come in.
Aside from the runaway tweeter that will soon be tamed down where it needs it, these are the best speakers I have heard in menny ways. They far exceed there price of $999.00+ shipping.
BTW I also went with the gold Dayton Audio adjustable speaker spikes DSS4-G They alow you to slightly tilt your speakers back and they look great with the white cabinets and gold tweeter!
Eric said the mod is unorthodox but it works and IMO the Audax tweeter is unique and a little unorthodox as it's response is anything but flat!
The speakers are still my favorites but my opinion is they need hand tuning to bring out the most they can be.

What's your placement like, Goramon? I find tilting them up a bit above the listener's ear greatly smoothed things out for me and added lots of ambience and soundstage depth too. I've been meaning to try opening them up and dampening the cabinet with Dynamat, as I suspect that would help with the last bit of imaging and soundstage. They're excellent stock, but there are still occasional times when an instrument, usually electric guitar, sounds like it's coming straight from the speakers and not from the rest of the soundstage.

That forward guitar sound is just what I'm talking about,try playing White Rabbit or Soak up the Sun and you will see what I mean.
Not all female vocals will have this problem but recordings like Famous Blue Rain coat will point it out.
A good read here. http://www.audiolofftreport.com/speakersound.html

That upper mid range glare comes right at you.
As for sound treatments the room is carpeted no hard wood floors,acoustic ceiling and 8X16 Sq.ft. sound treatments.
Amp Manley Labs Stingray in Triode input tubes Mullards,output TAD EL84 STR interconnects White zombie audio La Cacanya (silver Teflon) Speaker cables (7 Awg silver Teflon).
Source a very modified 500gig. first gen. Apple T.V. linked by an all glass Tolsink cable to a little dot Dac 1.Apple loss-less files.
I also tested using my Music hall level 1 mod.CD25.2
To find the same thing.
I do like the idea of Dymamating the inside only where the fiberglass currently is but careful not to over dampen as you could deaden to much.
I came from a first class vinyl rig to loss less file as a way of making room for a new son.
So I know what artifacts can come from both analog and digital but this node lives with in the tweeter i'm pretty sure,having said that not every production run of any component is exactly as the one modeled and graphed and that's why guys like Henry Kloss believed in hand tuning by ear as the final finish,but at $999.00 a pair that's asking a bit much. They are not $7,000 dollar speakers.
Eric, dose a remarkable job in coming very close to the best at a give away price and there is a need for his place in the market.
Being a father now I can't go run out and spend thousands on my hobbies but I can get the musical speaker I have ever heard and spend a little time taming a little peak to make them just how I want them to sound.
I have always hated 99th row performance of todays high end audio (live music dose't sound like that.The Lore sounds like your 5 or 6 tables away from a live band in an intimate night club and that is just what rocks my boat.
When I get them sorted out I'll wright more.