???Compare-Contrast & Comment???5 Pairs Large Monitors

subject-wise

https://speakerchoices.com/ has all these except a different Spendor Classic version as well as the Fritz. You can select and compare the specs of all if you wish. I have only heard the Sonettos

With my personal experience, not ever hearing the Sonetto's, I would choose between the Fritz and De Capo's. Slightly leaning to the extremely efficient Carbon 7's. Those are all great choice however.

Side bar: if my mammary serves me right, the De Capo WAS the stand mount monitor that made the BBC's insignificant by audiophile standards.

Not to stir the pot too much.

Well, I own the Fritz Carbon 7 SE MKIIs. Can't make any comparison to the others mentioned. I find the Carbons to have a very even tonal balance, play deep enough into the bass region for my tastes (room about 11x15x8.5'), great soundstaging and image focus, with good dynamic range. A side from the sonics they are easy to drive having reasonable sensitivity and I believe more importantly a flat *ohm frequency response.  I drive them with electronics (pre & amp) costing 3X their price.