Are the vintage 8X10's really that much better than a new version? I'm talking about a 70-72 with all of the speakers in good condition, but with the tolex beat up. I have a SVT-CL and right now am using a 410hlf and looking for more options. I know about the nv610's and always have an eye out for one, but am not willing to pay someone $200 more than what they paid for it new. So, is the difference in tone with the 8X10's noticable?