Much of what was posted by Frogman, Dover and Lewm are in agreement with my experience that I resisted posting.
I’m going to make a few comments that are guaranteed to generate pushback. SME V12 and perhaps other SME versions use Van Den Hul silver wire and if the stock tonearm (DIN/RCA) cable is replaced with better quality, it’s quite a good combination. The small fine internal tonearm Van Den Hul cable does not sound like their interconnect cable. I don’t know why but this applies to many companies that build interconnect and internal wire too.
Kuzma can be ordered with several kinds of wire, I choose Crystal Cable silver gold and instead of Bullet RCA connectors I opted for the new Furutech Nano Crystal version ($200.00 per connector).
To steer off even further, in my opinion the drive system of the turntable can effect dynamics and bass almost as much as the tonearm. Add turntable mat and you come more near covering all the factors that effect end result.
In my experience mats that are soft are not as dynamic and belt drive systems are often less dynamic than best idler wheel and direct drive systems. Like all sweeping statements there are exceptions. For instance Rockport belt drive was equal or surpass most idler and direct drive but the Rockport direct drive and other top tier direct drives are added performance.
I know these are sweeping statements and I’m sure there are exceptions but in my experience, testing here with as many as three turntables set up at once and auditioned by dozens of people for nearly a year, arrived at the combination I use now.
Best results were stainless steel mat and stainless steel center weight, filled with oil. Second best was Micro Seiki CU320, third best was Micro Seiki CU180. With each of these end result could be substantially changed with choice of center weight.
Turntables I can remember, not in order.
Thorens TD 121
Thorens TD 124
Thorens TD 124 MK2
Thorens TD 125
Thorens TD 125 MK2
Luxman PD-121
Win Labs
Oracle Delphi
Oracle Premier
VPI 19
Well Tempered
Linn Sondek
Townsend Rock
Versa Dynamics
Basis Debut Gold MK4
Basis Debut Gold MK5
Walker Proscenium Black Diamond
Lenco L75
Garrard 301
Technics SP10 MK2
Technics SP10 MK3
NVS Wave Kinetics
Grand Prix Monaco
Tonearms I can remember, not in order.
Ortofon RMG 212
Ortofon RMG 309
Infinity Black Widow
Fidelity Research FR66
SME 3012
SME 312S
SME V12
Graham
Wheaton
Triplanar
Durand Talea
Air Tangent 10B
Micro Seiki Max
Reed
Breuer Dynamic
Exclusive Pioneer
Primary Control
Audiocraft AC4400
Kuzma 4 point 9”
Kuzma 4 point 14”
Last, the speed accuracy of the turntable has huge effect on dynamics and bass. The drive system is important but so is the accuracy of that system. At one time I was testing all turntable with a Sutherland laser and watched for error as an LP rotated. The best result was the ability of the turntable to lock the laser into precisely the same spot on the wall (16 feet away) regardless if 33 or 45 RPM and regardless of dynamics of the LP.
I had one turntable here that actually caused the laser spot to appear to run backward, then catch up with itself, while rotating at wrong speed along with these dynamic errors.
So many things to consider in addition to the very important tonearm but sometimes a tonearm is mounted on a lower performance table with a lower performance mat and weight and it gets blamed for total results.