I have had several Canton's in my home (I still have a full Vento system and had the Ref 3.2's for a while as well) Canton makes an amazing speaker, but they will do better with more power. I for one wouldn't be cranking them up with an 85 Watt Arcam amp. I have run my 809's and 802's on 200 Watt Mark Levinson amps, Krell Evo's (400 Watts//channel) and have tried them on less powerful amps as well and can say the improvement in bass response from the higher powered amps is significant.
I would think you'd be OK as long as you aren't trying to crank out high volumes (something Canton's don't do very well anyway) but you will definitely reap a major benefit from switching to higher powered amplification.
I would think you'd be OK as long as you aren't trying to crank out high volumes (something Canton's don't do very well anyway) but you will definitely reap a major benefit from switching to higher powered amplification.