You gotta _hear_ Aktiv. Go to a Linn dealer and check it out. I had a dealer with a pre-rigged comparison display and it only took seconds (really) to hear the difference. Amazing and has challenged my pre-established upgrade path (still uncertain). My hunch will be you'll see the value in 2 LK-85's Aktive over either amp you're looking at passive.
Have fun.
Have fun.