Hi. I am new to home theatre systems as i have lived on 2.1 channels only. I have an Infinity TSS-1200 speaker set. I want to know what amplifier suits best for that. Its a 120w speaker system with a subwoofer with LFS and crossover knobs. Will the HK 3490 or Yamaha RS-700 be good for those? Or do you have any other suggestions?