Please could someone explain to me how to go about making my speakers active via bi/tri amping. I'm currently using my arcam a75+ to drive the speakers passively (bi-wired). What Kit would I have to purchase and what are the likely costs in doing so? Would I be able to use the A75+ or would I have to buy 3 seperate power amps? I do not fully understand how you would connect the whole lot together either. Any pointers please? Are there any makes and models that you would suggest to complement my current set up. I'm really just putting out feelers to see what amount of money I would have to find to get the best out of these speakers. Many thanx for any feedback.