welcome to the forum, to start with.

klipsch makes high-end speakers, they also make normal speakers, and they make budget speakers. but there is still way better than klipsch.

a good speaker is a good speaker because of so much factors,
the materials used (like cheap thin plastic vs cheap wood vs expensive, nice durable thick wood) and the materials for the drivers themselves, (like kevlar, beryllium, aluminium, rohacell, diamond, ceramic stuff) and for internal materials (like the internal wires, the crossover quality,...)
build quality also is an important factor, because you can have all the high end materials, pushed together like crap, and then you end up with very expensive garbage.
the shape of the speakers, the technology behind it,...
so many more, that's for the speakers themselves, but you still might not have good sound then,
you can invest in $$$ speakers, and ruin the sound by wrong placement, hiding your speakers, putting stuff in front of it, putting too much stuff between them, isolating them while you should be coupling them too the floor (and in reverse), ...
those are also very important,

and more important factors:
what you use to drive them with (which amps, preamps, sources, cables,...) and how they are set up,
all those things are very important,

but there is something else that is very very important,
which differs for all peoples.
The human ear, and the human taste.
you can have $$$ speakers and find that they suck, you can find it too bright, too warm, to forward, to bassy, that there's missing something...
that's why we always advice people to audition something first, and then buy it.

Hope this helped,
Greetings,
Bert.