Need help replacing caps

Hello🙂
Don’t know where to post this issue of mine. This is regarding my bookshelf b&w dm301 speaker. I want to replace all original caps but unfortunately I cannot find the value of one the cap's 11uf 70v . This is for the LF side with .9mh in line. Any recommendations?
Thanks and more power
 

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If this were a coupling capacitor between two circuit sections, 10µF would be fine in most cases. Some manufacturers seem to use odd component values for unknown reasons, perhaps to prevent amateurs from tinkering with their products. That was the original purpose of torqx screw heads.

However, as this is a crossover unit, it's best to use the original value. A different one will change its behaviour. Whether the change is noticeable or objectionable is another matter.

As already suggested, you can use 10µF and 1µF in parallel. An alternative is to use two 22µF units in series.