Help Tannoy XT6F with Primaluna

 Well I have been trying everything I know to try. I have let the speakers play for hours on end. I have tried Cables, room position, Toe in tow out tilting forward tilting back. I still can't seem to tame that harshness. Things that sound good sound really really good but the things sound bad sound horrible. The kefs seem to be able to make everything sound pretty good. I even tried hanging paper towels in front of the upper driver. It did tame the sound but then the things that sounded good now sounded dull. I'm going to try a McCormack power amp this weekend.  I'm hoping for something good. If not I guess I have to sell the speakers. 

By the way none of this has been with the prima Luna. It's all been with the Rotel solid-state power amp. The primaluna will absolutely not work with these speakers.

Morrow audio and Kimber. Morrow sounds better.

More info: Tried a set of Kimber 8tc speaker cables with amazing results. Silky top end and the upper mid peak is greatly improved. Truly amazing. Going to try bi wire and shot gunning to see what happens. 
Ben

Solid state Rotel amp. I don't think there is any hope for the Primaluna with these Tannoys.

Rotel SS amp: Bi wire brought the peak back out some. Shot gun made no change I could hear.

 Well I have about 60 to 70 hours on the speakers I believe. Morrow Audio says it will probably take at least 200 hours. I have them set up out-of-the-way facing each other as close as I could get them with a mono signal and wired out of phase.  I'm going to play them 24 hours a day for five days and see what happens.  That should get me close to 200 hours total.

The Klei cables appear awesome.  It scares me though to spend $800 on new cables.

Update.
I got another 125 hours of burn in on the Tannoys for a total of about 200. Sounding better. Another 200 should do it. 

Sold the Tannoys and the Primaluna. Tried the XT8Fs. Awesome speaker. If have since moved on to a pair of Dynaudio Contour 3.4s.
Cheers!