I have a Denon 2802 amp, which I'm currently using with speakers of my previous prologic setup. For mains speakers I'm using B&W 600i. I'm using a B&W active subwoofer. For the centre and rears, I'm using Sony's and those have DEFINATELY got to be replaced to do any justice for my new Denon amp! The audio quality from the Sony erars are just too soft. What do people suggest I use as replacement speakers, so I can narrow down my choices before I start auditioning? Thanks.