Megido
For the most part it sounds fantastic but I've noticed that more complicated music, with lots of parts, seem to loose a bit of the magic. I feel like these speakers deserve an amp that is on the same level in order to really shine.
It may or may not be your Jolida. Here is a quote from another KEF LS50 thread on AudiogoN:
01-07-13: Bhobba
Yea heard them against some much more expensive and obviously better stuff along with a number of fellow audiophiles. Very clear, real and present especially in the midrange. Everyone that heard them liked them. The issue is feed them something complex and they go to pieces. If you like Dianna Krall, Sinatra etc - get a good valve amp and these speakers and you are in heaven - forget rock, heavy metal etc.