triode versus pentode

I think the most pronounced differences you will hear will be in midrange/upper-midrange tonality and, if you have a well set up system, the imaging, which in pentode should be more forward and pronounced in the mid-range. Triode (in those amps I have which allow selection) usually is more recessed in the mid-range, and has a recessed soundstage and (in my stuff) more narrow as well. FWIW.

It think generalities about what you "should" from different designs in triode or pentode is pushing the edge of what can be predicted. Well, over the edge, actually.

For what it's worth, in all but a very few cases, when high-end audio amplifiers label themselves pentode, they're actually ultralinear in operation.

Ultralinear is a combination / compromise between triode and pentode. You could argue it's the best of both worlds. Or, you might argue it's the worst of both worlds.

Thank you for the kind replies. After reading your replies, I have paid closer attention to each setting and found the pentode brighter, a bit more forceful. I alternate listening to jazz and small classical ensembles on that system using Gemmes Katana and Audio Physic Avanti speakers.

On triodes the Gemmes are sweeter, whereas on the AP Avantis seem more clinical; both, however, provide a very good soundstage. On triodes the sound stage appears to be better on the Gemmes.

Time will tell if the triode/pentode compromise is advantageous to that of a single format. Again, thank you for enlightening me.
Saludos,
Rolando (AKA Penonome)