Have narrowed decision on some speakers hope you can help.My choices are between def.tech. bp30 and B&W 603s2 or 603s3.Are there any real significant upgrade between the 603s2 and s3 in regards to sound.I will be using rotel rsx1056.All speakers are in the same price range.I have been going back and forth with the wife on which spkrs.Hope you can help narrow this down even further.I have to make this decision asap.I can't listen for myself due to purchase will be online.thanks,by the way the wife likes the B&W(color).