I bought my KLIPSCH KG3.2 new in 1994 and I listen to them to this day. After so many years, I decided to replace the capacitors with new ones. The choice fell on Dayton Audio.
Here is the change configuration:
old 4uF capacitor - new DMPC 4uF 250V x 1
old capacitor 8uF - new DMPC 4uF 250V X 2
old capacitor 24uF - new DMPC 12uF 250V x 2
+
old resistor - new Ty-Ohm SUPERS 3ohm / 5W
additionally, I damped the side walls and the tube with a mat: Vibrofiltr PRO 2.0 / 2mm
The final effect - I did not hear any changes in the sound.
And finally, it turned out that the old capacitors had good parameters ...