chords on nylon strings

Can I ask you all a very broad question? I play on a classical guitar for a few months now, and don't use a plectrum. One thing I noticed is that my chords sound fine when they use five or all six of the strings, but often sound wrong (dead) when I play mostly the top strings.

When was the last time you changed your strings?

This got me tinking about the difference between the clear nylon strings (G-, B- and E-) and the metal-wound strings (E- A- and D-). It's like the nylon-only strings need more punch to make them sound, die out quicker, and have a higher 'minimum volume level'.

I think you have it pretty much right. The plain nylon damps itself out faster than the metal wound strings. Gunky strings might damp out faster but nylon strings don't corrode like metal ones so that's probably not the issue.
The damping is something that lets the high-speed players play so many notes so quickly without sounding muddy.

You could try new strings. Be prepared to have to keep adjusting the new ones for about 5 days straight as they stretch a lot when first installed.

There may also be some technique issues but don't expect those strings to ring for long. Nature of the beast.

Allright then, I'll learn to live with it. (Maybe become one of those high-speed players. :D )

Also, I've got this guitar for about three month now, but it never crossed my mind to change the strings! I'll give it a try!

changing the strings is a good idea but i'm afraid that you will see more improvment in the lower strings and might be dissapointed by the results.
two things that i have to add (based on my experience)
1. i'm a classical guitar player and, like everyone, my first guitar was poor. i havn't seen your guitar but you have to consider the possebility that she might be the problem. that is, after you try this:
2. to maximize the potential of the high strings i reccomend that you first take care of your left hand, if you press down right before the frets with the tip of your fingers (when the nails are about 90 degrees to the fret board) your sound and sustain will improve dramaticlly. once you've got that down try picking the strings a bit higher then the sound hole (between the sound hole and the 12th fret) it pruduces a softer more sustainable sound.
have fun with it and i'm sure that you'll get it down 8)

There may also be some technique issues but don't expect those strings to ring for long. Nature of the beast.

Good trebles will sound out above the basses if you're playing a classical guitar as a classical, but if you're strumming chords then the body construction will load up on bass and middle frequencies.

You should make sure you're strumming parallel to the soundboard - if you're only just skimming the top string but really hitting the bottom string then the sound you produce won't be uniform.

A :-)