Hi looking at purchasing either an Arcam Diva A85 or Mrantz PM7200 KI Signature amplifier. I mainly listen to RnB, Rap/ Soul and Drum and Bass. I do not listen to cassical. I just wondered what is a good quality amplifier which has got lots of power at least 80 watts and a good quality power supply such as a Toroidal power transformer to ensure good speaker drivability. Im using B&W DM601 S3 speakers. What do you think of the Arcam and the Marantz for sound quality. I beleive these speakers are quite hard driven. I know tone controls are disliked by many but I prefer amps with them on. Im after buying one used.