[Freo-1]

Often, these small amps are SE with high R_out, an amplifier that will be much happier with a loudspeaker with a flattih impedance curves.

I have seen NO measurement of a Klipsch impedance (with the stock XO) that anywhere near stisfies this metric.

They may be efficeint (typically rated about 3 dB than they really are), but not really suite dto a high R_out amplifier.

 Crites does some aftremarket XOs that fix this issue with some Klipsch.

dave

Paul Klipsch often said:  " What this country needs is a good 5 watt amplifier ".  Some of the best sound I've heard with Low Wattage is with high quality SET amps driving modified K-Horns.  Most speakers cannot match the K-Horn dynamics. 

[planet10]

driving modified K-Horns

You will note "stock” in my comment.

They really need a DSP XO to get any sort of time coherence.

dave

[Freo-1]

Low Wattage setups often lend themselves to tweaks/modifications.  K-Horns do need modifications to get them to sound their best.  Once modified,  they can provide some serious dynamics with some degree of realism.

[planet10]

K-Horns are limited to rooms that have a pair of usable corners in the right place so suited to few. They are also BIG.

dave

[Freo-1]

Yes. That's why they have great dynamics.