The crossovers in a pair of KLH 20 speakers were restored/upgraded with WIMA MKS2 capacitors. The KLH 20 speaker is essentially a KLH 17 speaker with a 4 ohm woofer and share the same crossover. Whereas the KLH 17 was sold separately, the KLH 20 speakers were part of the KLH Model 20 Music...