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Marantz imperial 7G recap

G

Gertjan90

Member
Hi guys,

I was gifted a pair of decent Imperal 7G's, and after refoaming I use them in my main set-up.

Most forums tell me recapping the crossovers will improve the sound of these vintage speakers ( to an extent).
So when I went to see what kind of caps I'd need, I came upon the following:

I guess it's the cap? It doesn't look like any othe cap I've ever seen (like in an amp).
It says:
3.0 orange
6.0 yellow
common black

Does this refer to capacitive value?
The back of the speaker does have some switches to adjust highs/lows.

Any idea what I should use to replace this, and do any other components need to be changed out?

Any help is appreciated!
 

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I am not familiar with this model and can't quite see the wiring configuration in your pic, but that appears to be a case of two capacitors contained within the single cylinder tube with printing. I would suspect that you need a 3.0uF cap and the orange wire for the tweeter; and a 6.0uF cap and yellow wire to the midrange. The black wire will be connected to one combined end of both caps. Each cap should be rated for 100 volts minimum, slightly higher is perfectly fine.
 
Use some of the wiring coming out of the old dual cap to connect to the new caps if the leads on the new caps aren't long enough. You want to be able to glue or secure the new caps to the crossover board. You don't want them flapping in the breeze. I snipped the wires off close to the top of the old cap with my 7's. It made it easier to orient the new caps on the board.
 
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