~ The Valhalla II is absolutely A-ok with the Clear. There is no impedance mismatch driven frequency response aberration to be found. The quickness and clarity of the Valhalla II is displayed with authority via the Clear. Vice versa, that of the Clear is not impeded a bit by the Valhalla II.
~ To my ears, the V-II/Clear pairing is remarkably close to that of the MJ-II/Clear pairing. I actually feel that the ambience/reverberation/soundspace is slightly better with the V-II/Clear duo: absence of solid-state output buffer + absence of output transformer?

…
~ As for transient response, attack and decay, when using the Footscrays, the V-II is right there with the mod MJ-II. Apparent via the Clear.
~ Interestingly, when comparing the V-II to the Woo WA3 (both OTL and both with the same Footscray tubes) through the Clear, the V-II has better bass definition, extends slightly deeper, and has sharper front-to-back delineation. Could one power tube (6N6P) per channel be more musically faithful than one power tube (6080 type) shared between channels?

again…
~ In all, the Valhalla II is the little OTL that could (and
should?)
be in your system…