Ok, I think I can see where your coming from with the more defined bass strings and kick drums. After reading about the Exakt Technology on the Linn website they show the high frequency signals hitting the ear before the mid level, with bass coming in last, but their exakt system filters everything so it arrives at your ears at the same time. So does increasing the power of the high frequencies by using a more powerful power amp kind of trick the ears into hearing all frequencies at the same time, a bit like those old 3D glasses and the eyes trick. If so this could be the forerunner to the exakt system. After that bit of useless mid bogging, fancy another tot of rum!!
I might just be on the lookout for an LK140 to boost my HF.