I purchased a pair of the B&W 602s3 just prior to my m22s. On my meager system the B&Ws were the worst sounding speaker I had ever heard. I got advice like they need time to break in, to you need more power to open them up. I only kept them a few hours, and I ordered the 22s and there wasn't even a comparison. I can't say anything about the 700 series since I have never auditioned them since there is no way I would spend that much on a pair of speakers.