I always fancied trying some LS4as many years ago, but was rather disappointed with them.
Not bad by any means, but nothing special to my ears.
I think the best small speakers I've heard are my Harbeth P3-ESRs, but my Goodmans LS3/5as are very good.
I never found the LS4a special either, its as you say. Best small speaker I've heard were PMC DB1i, at the time I also owned P3-ESR, Tablette Anniversary, Usher S520 and Excite X12.