Indeed the Heresy in not a bookshelf. I happen to own 1976 1s but owned a pair of 2s at one point just to see what the bferrite vs th alnico magnets did the sound.Surprisingly they sounded very much alike.The Luxman sounds like va good match due to the cashmere blanket smoothness of the Lux to counter the easy to induce shrill hashhy shouty no bass oops I used to love my speakers they were my first audiophool pair bought for $550 grills were another $50 I couldn't afford. Guess what I still have them but don't play them often. About 5 years ago I fulfilled my dream speakers , the one I really wanted 1976 a pair of LaScalas.
I bread that the unlikely combination of a Mac Power Amp and Klipsch had great synergy. So I bought a cheap I have no idea how old 2505 Mac with a minimal output of 50wpc. I had auditioned the LaScalas with a Bottlehead 2A3 amp and it was loud but the bass was MIA. these have 15' woofers that you can't see unless you break some kind of hermetical seal but reportedley fire stright into the wooden coner that is in the middle ofg the bass cabinet.
It was va completely different sound the woofers came alive and balance was back to something sort of normal.
The point is that better crossovers would in my mind direct much of the energy at the woofer and yes bass reiforcement from a solid floor does a great deal achieve a better tonal balance.
Even though I used the Heresys for 25 years and thought why get anything else. When my equally old amp died one of students told me stereo was audio and the reason I couldn't find a store to replace my integrated Japanese amp was because it had become a very low key and holy mother of pearl insanely expensive hobby called high end.
Wow like many who enter those gates the addiction grabbed me buy the---where had I gone in these last 7+ years a slippery slope ideed. Monoblock Tube power amps a tube collection of over 150 pairs of 6SN7s by themselvesJM/Focal Electra Speakers Oh yes the waf system only a Jadis DA-60 I could go on.