What is Your background ?
What are Your skills ?
What is your opinion to be the 'best material' ?
What is your reference point for subjective 'testing' ?
Is it just you or a group evaluating these 'sets' ?
Do you have the coin and time to take on this venture ? It is much more than one may think.
Not all sets that work very well and fit cost in the $400-$600 range. Just an FYI.
Engineers are known for designing and building, to an extent, not listening, in a vehicle.
Using Memphis as a reference to a 'quality buildhouse' is less than stellar.
Not trying to pee in your cheerios, just being realistic, out loud.
Kenwood DNN990HD >Mosconi 6to8V8
Brax Matrix MX4 ..Dynaudio Esotar 650/ Esotar 1200
Brax Matrix MX4 ..Dynaudio Esotar 110/430