I almost never flip the normal/triode switches to triode mode on my D Sachs Kootenay 120 because I prefer the normal (65w) setting most of the time. However, for some reason, I decided to give the triode mode a listen today. I popped an XRCD "Best Audiophile Voices" in my Oppo-103 and hit play.
I'm gobsmacked! This XRCD has 14 titles of female singers accompanied by different instruments. The ladies are Eva Cassidy, Allison Kraus, Stacey Kent & Jim Tomlinson, Carol Kidd, Jheena Lodwick, Dave's True Story, Tish Hinojosa, Cheryl Wheeler, Salena Jones, Jeanette Lindstrom & Steve Dobrogosz, Karrin Allison, Monica Mancini, and Nnenna Freelon.
Wow.
Additionally, I've been experimenting with turning the gain dials way down (approximately at 30%) rather than having them at 100%. Music just sounds better at the lower gain setting.