Sound Lab is absolutely one of the best speaker,very neutral,go deep,some area i think best,perhaps Roger West remaind me legendary speaker engineering John Dunlavy,SL need good amp,i use them Burmester 069 cd and Burmester 911 mk 3 amp monos,Transparent Ref mk 2 Cables,Burmester 938 powerbox and Velodyne 1812 sub,one my reference loudspeakers,other is Wilson and Acapella if you like neutral sound.happy listening Tapsa