Many years ago we sold that speaker and when setup with good electronics they sounded quite good for the design of the time we dropped them as the Dali Helicons were a far better loudspeaker.
We don't know what cables the gentleman is using, what is the quality of the source, as well as the fact many digital amplifiers don't have the liquidity in the midrange that a good class A/B amplifier has.
Reverberent rooms tend to sound shouty and echoey so it is hard to know if this gentleman has slap echo or not, where maybe adding a pile of pillows behind the speakres would be a cheap and effective fix or adding an area rug or other acoustical fixes.
Dave and Troy
Audio Doctor NJ