DM22 Refurb questions

[Lord_Pall]

So I picked up a clean pair of B&W DM22's today.

I'd like to do some maintenance on them.

The crossover has 27 year old electrolytic capacitors that I believe should be replaced.

Unfortunately, i can't seem to find the exact MFD rating. It has 9 and 4, but the closest I can find are 10 and 3.3

Is it okay to use those in a crossover?

Any other bits I Should swap out while I'm in there? I figure I'd replace the wiring as well, but I'm unsure if I need to change the inductors/resistors/etc.

[Willitwork]

Originally posted by Lord_Pall
So I picked up a clean pair of B&W DM22's today.

I'd like to do some maintenance on them.

The crossover has 27 year old electrolytic capacitors that I believe should be replaced.

Unfortunately, i can't seem to find the exact MFD rating. It has 9 and 4, but the closest I can find are 10 and 3.3

Is it okay to use those in a crossover?

Any other bits I Should swap out while I'm in there? I figure I'd replace the wiring as well, but I'm unsure if I need to change the inductors/resistors/etc.

Old electrolytics should definitely be replaced, preferably with film type caps. Those are the most common in quality speakers and it's very easy to get your hands on the values you need. Using approximative values is not recommended as it will change the Xover frequency. Evn though it's not critical you could also swap ferrite-core inductors for air-cores but in that case you'd have to take the inductor's own resistive value into account. This could affect the sound if there are many coils on the Xover.