Lomavenye:
Looking to discard my NAD integrated.
Is it silly to go all out and get an expensive pre/power combo for these bookshelves?
Silly depends on whether you eventually plan to upgrade your speakers... if you do, then it makes sense to get the best amplification you can now, even if the Quads aren't able to make the most of it, since once you upgrade the speakers you'll already have appropriate amplification (saves you money you would have wasted from buying an intermediate amp, then upgrading speakers, then upgrading amp again)..