No. Lo importante es su valor (real, dado que existen diferentes márgenes de tolerancia).¿Pero son escuchables?.
¿Se manifiestan con niveles de distorsión distintos haciendo una medición con micro y se reflejan en las gráficas?
Los inconvenientes de los electrolíticos son su duración más limitada y su manejo de potencia.
Esto es lo que dice Zaph:
Yo personalmente los uso, sobre todo para valores altos, sin ningún pudor. Me parece que el gasto extra de condensadores caros se puede dedicar a otras cosas. En cualquier caso los condensadores Dayton o Monacor de poliester van perfectamente y son baratos.The two negatives of electrolytics are lower power handling and degradation over time. Sound quality is not a negative, though many would have you believe that. Electrolytics sound every bit as good as poly, mylar or metal film capacitors.
Some of the electrolytics in this crossover are doubled up for power handling. As far as degradation, if you still have these speakers in 15-20 years, that's when you'll have to begin worrying about it. Being realistic, it's unlikely anbody will own a speaker long enough to worry about the electrolytics degrading. On the other hand, if you plan on this being the last speaker you ever build in your life, (and you're young with lots of life left) you might consider a move to poly caps for the big values.
Pablo.