lrs will sound better and better with a better source, or better amp... the speaker, set up properly with proper stands (perhaps with subs supporting), has tremendous resolution and shows through any poor sounding source and/or weak amplification upstream of it
of course common sense should prevail, but it is not unreasonable to have a $2000-3000 hegel or pass amp drive it... of course if one wants to hear what the speaker is truly capable of... this is very very atypical of most sub-$1000 a pair speakers