I have modified another pair of Energy Connoisseur C-3 crossovers with V-Cap OIMP 250V capacitors(1uF, and 4uF), ClarityCap ESA 250V capacitor(15uF),Mills 12W resistors(5.6 Ohm, and 2.7 Ohm).The two inductors( 1.2mH laminated , and 0.5mH air core)are left untouched. Although V-Cap OIMP capacitors are not polarized, the outermost foil (short lead) must be connected towards the negative input of speaker. It is best to keep lead orientation consistent for 1uF and 4uF capacitors. It takes 200 hours of music listening in order to hear the clear sounds from the speakers with V-Cap OIMP in the crossovers. The speakers sound so smooth, clear with V-Cap OIMP capacitors. V-Cap OIMP capacitor may be one of the best capacitors for speaker crossover.