definitely tubes with Klipsch horns.
And Although the Pass Labs Amps are some of the best SS imitators of tubes, IMO, Pass amp still will not do u justice.
The PSA BHK 250 would be too much power for easy-to-Drive-Klipsch horns.
The Sonic Frontiers, Vincent and Rogue would be fine, but they do not match the high quality of the BHK hybrid Pre. So I would bump it up a notch and quality for the team to amplifier, since it’s the last electronically is influencing the sound before it goes to your speakers.
Consider Cary, Mystere, Primaluna, Quad, etc
A pair of small monos would be perfect IMO