845 or 300b with Agalme?

Looking at specs on that speaker I'd expect 845 to be better match. While I have no experience with Hornings, 90db efficiency and 4ohm nominal impedance, calling for 10-20wpc amp points to 300b SET being iffy proposition. I have both 300B and 845 SET amps, with my Klipschorns, 104db and Merlin VSM-MM 94db, 300B best with Khorns, 845 with Merlin.

I recently purchased Thoress phono, haven't heard yet as streaming has taken precedence. I'd bet on the Thoress 845 being wonderful with the Hornings. Not too many people in US know about Thoress, marketing much more focused on Europe.

With the specs you guys quoted would work fine with 300B. I've had two 845 SET amps, greater impact, authority with 845, 300B more harmonic development, sweeter. I love both tubes, probably can't go wrong with either. Make sure you have high grade power tubes in either case. Review of Thoress monos in Postive Feedback were supplied with KR 845, those top grade if they have durability issues resolved, I had failures with these tubes many years ago. Reinhardt hand picks tubes for his components, my phono enhancer has very nice NOS, point being I'd trust whatever tubes the monos were supplied with. Love the Steampunk styling of Thoress as well.

@grannyring In regard toThoress, I purchased with possible intention to upgrade caps, resistors. Did you listen to Thoress? If you did, how would you describe flavor?     i'm thinking Texas Components TX2575, Duelund Cast.

Thanks @grannyring If sound signature of phono similar my chosen parts substitutions should provide exactly what I'm looking for.