Sweet of you. Productive too
Nope, just cynical. It sounds like your idea of a "productive" discussion is yakking about how "airy", "bright", "dark", "strident", "harsh", or "revealing" a cart might sound to different owners with emphasis on where you think the "stage" imaging might be, while your criteria for quantifying how it compares to other carts is the famous "wipes the floor with" scale. That's all plain good ol' audiogoof bullshit!
As far as that analog planet
Fremer review on the 1200G arm goes, he had used a Japanese 12cu@100Hz
Lyra Etna SL cart for reference. His prelude seems to address high compliance cart owners wondering about the compatibility of the SL-1200G. His concluding statement is "
yes, you can use the SL-1200G with your favorite low-medium compliance moving coil cartridges" and that has nothing to do with high compliance, nor with low compliance carts. It's just a plain stupid worthless paragraph that says absolutely nothing about it's prelude statement but sound all classy and authoritative. That's the Fremer way of doing it, and unfortunately - it works more times than not. The Lyra is 2.4 times more compliant than the Denon DL-103, so if that's where you derive the apparant sense of euphoria with the DL-103 performance on the 1200G arm - you both couldn't be more wrong.
I happen to know first hand and for a long time how the DL-103 sounds with the old Technics 12.5g effective mass tonearm and how it performs with other, more compatible, 19g, 20g and 24g eff. mass tonearms. It's worlds apart. Just like that Fremer key board magic that is always appealing to the ignorant and unsuspecting (and by god never offends the advertisers), the DL-103 has this same sort of magic of it's own. It never sounds bad! In contrast to that famous charlatan's m.o, that's not a bad thing at all. I do actually believe the authenticity of your impression, but while you think it works "beautifully" on the Technics tonearm - I'm guarantying you this: You have no clue what it was designed to sound like.
Over the years this very issue with the 103 had thought me how to tell the tire kickers from the mechanics and nine years of separating fact from fiction on AK had got me realizing that whoever says their Nagaoka MP500 wipes the floor with many moving coil carts - is really not familiar with that many moving coil carts.
There's no wonder in my mind why you'd rather not get into every single variable. I don't think you understand half of them and you're just pissed off that hard core physics and elaborate math had managed to infiltrate a hobby once perceived as only requiring a pair of ears with little regards to what's in between them. Well buddy - tough luck! If you're only 50 y/o, you weren't as smart as you think you are back in the vinyl heyday of the 70's and you sure got some catching up to do so I suggest get started now b/c there's lot's of it.