Been using and loving my Infinity RS 5 Kappa speakers for 18 years. The model was the two-way baby brother of the better-known 8 and 9 Kappas .I believe this model was only manufactured in 1989. The speakers have always been wonderful to look at and hear to me ! They had their surrounds re-foamed a year ago, as they finally failed, but now my concern is the crossover and some of its caps.Only the tweeter circuit has Wonder plastic ones. The rest seem to be electrolytes from Culver city.Does anyone have any idea what the sound degradation caused by 20- year-old dried up caps would be in practice? The sound to me today is OK, but if it's been turning worse gradually I guess maybe one doesn't notice...Changing the caps seems a dubious idea to me, since the circuit board and its solderings seem fragile and prone to be permanently damaged if the work (which is beyond my capabilities) isn't carried out very carefully. What do you say? Otherwise I*d be more than willing to go on with the Infinities "for ever"...