I never heard the Valencia but I have heard the 811 w/804A HF driver (in another Altec model speaker) and to tell to the truth, I found the material that worked well with that particular HF driver combination extremely limited. I would expect the 802 HF driver of the Model 19 might be better. But to my ears the Model 14 with the newer Mantaray horn is the best. As always, YMMV.
*Incidentally my brother who's visiting brought up a 1962 Brubeck album which I played on the 14s. Wow did those speakers ever perform well with that material.
*Incidentally my brother who's visiting brought up a 1962 Brubeck album which I played on the 14s. Wow did those speakers ever perform well with that material.