@avanti1960 Cary Audio SLP 98 is the ticket between warm, dynamic and detailed and responds well to tube upgrades, e.g. Sylvania GTA.
I can make my Cary SLP-98 preamp sound like four different tube preamps by simply changing the 6SN7 tubes and capacitors. And, it responds to different interconnect cables when the rest of the system is reasonably transparent.
TUBES:
The original stock EH Electro Harmonix 6SN7 tubes always seemed a tad lean.
For more detail, neutral midrange, vintage 6SN7 Sylvania GT work okay
New manufacturer TungSol 6SN7GTB, more weighty, less detail, tad more grainy. Not as refined as my vintage or others below.
For more midrange weight and body, velvety, PSVANE CV181s do the trick.
In between, my mothballed sets of TS Full Music 6SN7s are very nice.
ICs:
Having tried several different pairs of interconnects with my SLP-98 - Apature silver-over-copper, Analysis Plus OCC copper, various Cardas Grade 1 copper, and others... each provided different results as well.
Caps:
Choose your flavor, a whole other chapter on different sounds with this preamp.
In summary, when someone indicates lean or full or weighty sound from any 6SN7 preamp I’ve tried, there are other factors involved to yield different results too fwiw.