Component identification

[nemohm]

Hello and Happy New Year!

I need help identifying a component in a Mirage M-290is crossover.
The component in question is the white block in the right bottom corner (first pic).
Anybody having the crossover schematics, by any chance?
I would like to upgrade the crossovers, to what extent should I go?
Caps are 4.7, 15 and 22..., currently Hanlan.
(will replace the steel nuts on the terminals, but the steel strips will remain, unless there is ingenious way to replace/bypass them )
Thx

 

[vinylkid58]

A 1.0uf 250v film cap perhaps? Is that the tweeter board?

jeff

 

[rayma]

Yes. Check the resistor values, and the two electrolytic capacitors.
The film capacitor should be fine.

 

[nemohm]

A 1.0uf 250v film cap perhaps? Is that the tweeter board?

jeff

Yes, the tweeter board

 

[nemohm]

Tweeter board layout (pic1)and my interpretation(pic2)?
I'm assuming , I could replace both 1uF and 4.7uf with one cap 5.6uF?
The 15uF would be a challenge due to the size of equivalent polycap. Resistors will be replaced.
The terminals have some attraction to magnet, negligible to the strips.
Thx

 

[ejp]

You could, but evidently the original idea was to have a film bypass cap.

 

[nemohm]

Bypassing is the end game, but I have the feel it is better to replace the electrolytics first, then bypass...

 

[ejp]

There is no reason to replace the film cap at all. Just change the electro.