Linn Ninkas - LK140 on Bass and LK85 on trebble?

I have a pair of Aktiv Ninkas with an LK140 on the bass and an LK85 on the trebble. It has been suggested I swap them around to have the LK85 on the bass, but I don't buy it. The bass requires much larger signals, therefore the larger amp should be on the bass?

I need to know why any other logic would be better.Does anyone have the same issue?

Also, is there any real adantage to going tri-aktiv with three amps. If so would I go for two LK-85's on bass and the LK140 on trebble, or two LK-140's on bass and the LK85 on trebble, or do I need to sell my LK85 and get three LK140's?

All opinions welcommed, by the way I am using a Genki CD player (variable outputs) directly into the power amps.