viridianThat’s fine, so long as the speaker then chosen doesn’t cause that amp to become a "tone control"
So I do it backwards and choose the amp first.
To me I would think in that easy "Kantor Simulated Speaker Load" graphs I posted above, that Stereophile uses, that +- 1 or 2db deviation from flat would be acceptable.
That means easier loads than the "Kantor" horns, JBL ect the amp would be almost flat and on harder to drive than the "Kator load" the deviation would still be just acceptable at +-3db deviation from flat.
.
Cheers George