Live acoustic music is not tubelike or SS. It is somewhere between the two in many ways. It is not exceptionally rounded or flat, overly warm or cold or particularly rolled off nor piercing. It is clear, undistorted, unconfined and full of dynamic shadings. It is unique unto itself. There is certainly no imaging per se either. SS and tubes can convey certain aspects of a live performance but can not fully reproduce it. Large events use SS amplification, but no matter what amplification would be used, the venue itself has a larger sonic imprint. That’s why there are great sounding Symphony Halls and terrible sounding ones. Seats within venues alter your perception of fidelity. For home, many variables must be in harmony to achieve a reasonable level of fidelity to the source. Far more than just Tubes or SS in the signal path. Of course, you also need to be able to hear pitch and tone with reasonable acuity.