Thanks for all your responses. My listening room (8ft ceiling)is almost empty, with just a small Italian chair (and some toys for the little baby). It has no drapes so sound is bouncing all over the place. The speakers are placed 2 ft from the rear wall and 2 ft from the side wall.
The first thing I will do is try new speaker placements. 3 ft from the walls???
Second, may be try some room treaments. What do you suggest? and where can I find them?
Third, probably try new tubes for the JD100. Which tubes are will give me the most highs and detail sound?
Last, I will try new IC for the source and new speaker cables . Any suggestions.
Boy, this hobby is expensive but fun.