Bdp24 - It’s just like one’s favorite loudspeaker requiring a certain type of power amplifier, one which may not be as good with any other loudspeaker.
I have that amplifier that plays all speakers well. And I have that tonearm that plays all cartridges well and can be mounted on most any turntable. A few posts up read about the Linn LP12 / ET 2.5 project currently underway.
I think the transducers should be the first components chosen when assembling a system, the two opposite ends of the chain (ignoring for the sake of this discussion the room). Then the most appropriate components moving towards the center of the system (the pre-amp) chosen to optimize the transducers. That’s my system philosophy.
It's been my personal experience, this being a Quest centered around resonances and vibrations to get a signal - that the more capable turntable/tonearm and less capable cart - will outperform - the more capable cart which is on a less capable tonearm/turntable.
so...
In my Audio Quest the objective has been to get to a .....Constant...... with the Turntable / Tonearm . The Cartridge becomes the ......Variable. The Cartridge is the wearable, ever changing variable, like tires on the car. Replaceable.
Now here is the "thing". What tonearm can play all cartridges, and be mounted on many turntables; for the above analogy is not possible without this tonearm capability. The ET 2.0 and 2.5 are two versions of such tonearms. just saying.....¯\_(ツ)_/¯
You obviously know that’s a good approach by having a Music Reference RM-10 for your QUAD ESL’s.
I have 3 available rooms of varying sizes and materials with 4 kits set up. A kit being any whole system which satisfies Audiophile primal needs. In all The Rooms... - The Room is the Master ----> The Speakers are slaves to the Room ----> and Amplifier is the Slave to the Speaker.

