I have a new Technics SL-1200G and vintage SL-MK1600 MK2. With all things being equal except the tables, trust me, I can mostly certainly hear the difference.
That comparison is not really apples to apples. The SL-1600mk2 is the platform from which the much more basic (downgraded) SL-1200mk2 was derived. The SL-1200mk2 is known for lack of mechanical shock/vibration isolation with the motor/spindle mounted to a semi-rigid rubber base, where the SL-1600mk2’s vastly superior spring suspension makes all the difference. Yes, the SL-1200mk2 feet help compensate, but not enough by themselves. Fast forward 40 years to today, the SL-1200G is made to mitigate some of the SL-1200mk2’s lack of isolation, but without a true spring suspension it remains at a disadvantage in that respect. The new coreless motor is solving a problem that never existed to begin with. Let’s face it, the SL-1200 series was never designed to be an audiophile turntable. In all it’s iterations, it was designed to stand up to heavy handed deejays so well that it survives even being abused by sub-human rap-“DJ”s. My vintage SL-1700mk2 is certainly superior to any SL-1200 variant, and I hope Technics finds motivation to release a SL-16/7/800mk3 for true audiophiles who want to be able to buy a new audiophile grade Technics turntable.