If it were me, I'd keep them the way they are. There is no cost to doing so.
I am not the largest fan of the K-400 or the newer plastic K-401 replacement horn & K-77. I'd rather have a single, larger multi driver, multi-entry horn that can reach lower in frequency, and lower the crossover - the top end of the bass bin range is rough.
Of course, this might sound like throwing the baby out with the bathwater to some.
I did a little "looking up" on the provenance of your KHorns, and it looks like they had a Type AA crossover, which was used from 1971 until 1983. I would say that 1983 would be the youngest possible date for these speakers. Also, I have not seen the scroll work and trim on any other KHorns, and I suspect that they were added on later, although the Klipsch custom shop may have done that. If that is the case, it would make the speaker a rare beast and perhaps increase its value.
I agree with the above comments re dsp and tri-amping. I am working - too slowly - on such a design for my KHorns, which were vintage 1985.
Fun stuff.
I agree with the above comments re dsp and tri-amping. I am working - too slowly - on such a design for my KHorns, which were vintage 1985.
Fun stuff.
