Hello everyone.

I'm working on upgrading a pair of Radford Monitor speakers crossovers.
In the process I'm adding a super-tweeter to the setup and turn them into Radford Auditorium model (they share the same FN7/5 crossover schematic, they just need an inductor and a 0.47uf cap aded to the existing crossover in order to enable the HF2 terminal).
I bought the following replacement capacitors from willys-hifi.com:

8x Mundorf ECap AC 8uf 70V Bipolar Electrolytic Capacitor - PLAIN
https://willys-hifi.com/products/mun...42037499265279

4 x Mundorf ECap AC 4uf 70V Bipolar Electrolytic Capacitor - PLAIN
https://willys-hifi.com/products/mun...42037209596159

4 x Mundorf MCap EVO Oil 0.47uf 450V Capacitor
https://willys-hifi.com/products/mun...nt=51344326867

I bought the 4 "Mundorf EVO Oil" only because I couldn't find the "Mundorf E Cap" in 0.47uf.
I'm no expert but I presumed that splashing more money on caps for such old drivers won't make much of a difference.

Now I got a few questions regarding these capacitors:

1. I've measured all of them with the multimeter.
The 8uf Mundorf ECap measure in the region of 9.2uf (15%)
The 4uf Mundorf ECap read around 4.92uf (23%)
The 0.47uf Mundorf MCap Evo Oil measured 0.465 (>1%)

I wonder if this is normal given that the tolerance on the Mundorf ECap is stated -/+5% and they measure between 15% respectively 20%.

2. I was wondering if someone could have a look at the diagram and let me know if I got the A - Z ends of the Evo Oil caps right as I've read somone saying that "even though film caps are non polarised, the outside of the foil should be connected to the low Z side of the circuit." I get that the A stands for the entrance point of the electrical current (binding posts / amplifier signal) whereas Z stands for the exit point and lower power meaning towards the speaker drivers?

Many thanks!

FN7:5 3 Radford Monitor Crossover (Solderboard)_8.jpgFN7:5 3 Radford Monitor Crossover (Solderboard).jpg