Yep, gotcha - it'll simply be a trade-off, as with most things in hi-fi.

I'd imagine too though that the overall sonic presentation of the XRs will in certain areas offer something extra over the MK1s, otherwise Celestion wouldn't have completely revamped the drive units.

I certainly can't wait to hear them on the end of the kind of kit I use, which will be nothing like what they were partnered with in the 60s!

Marco.