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Old 15th July 2014, 07:22 PM   #1
diyAudio Member
 
Join Date: Jul 2014
Default Sansui sp-X7000 recap?

Hello,

First post and already starting with questions (sorry)

I have a pair of Sansui sp-X7000 speakers that have been in my live since 1978.
They work great and have a big sentimental value, but I notice some lack of brilliance on the trebble, specially comparing with new speakers... and one speaker is not exactly sounding like the other.

Today I've disassembled the woofer (big pictures below) and thought about recapping them.
The crossovers seem a bit complicated to me, these are their data:

Frequency response is: 8 Ohm, 97dB/W/m., 30 - 23.000 Hz.
X-over points: 1.500 / 5.000 / 10.000 Hz.
Rubycon NP capacitors:
50V - 0.47uf
50V - 4.7uf
50V - 8.2uf
50V - 3.3uf
50V - 22uf.


https://dl.dropboxusercontent.com/u/908596/Sansui1.jpg
https://dl.dropboxusercontent.com/u/908596/Sansui2.jpg
https://dl.dropboxusercontent.com/u/908596/Sansui3.jpg

What kind of capacitors should I use?


Thanks in advance!
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Old 15th July 2014, 10:34 PM   #2
sreten is offline sreten  United Kingdom
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Join Date: Nov 2003
Location: Brighton UK
Hi,

Modern 50V NP electrolytics, cheap and cheerful.
(Except use any film type for the 0.47uF).

(LL, low Loss NP's and film types will change the sound.)

Don't know the best source in Spain.

If they still sound different, start swapping the drivers.

rgds, sreten.
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Last edited by sreten; 15th July 2014 at 10:38 PM.
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Old 16th July 2014, 08:30 AM   #3
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Join Date: Jul 2014
Quote:
Originally Posted by sreten View Post
Hi,

Modern 50V NP electrolytics, cheap and cheerful.
(Except use any film type for the 0.47uF).

(LL, low Loss NP's and film types will change the sound.)

Don't know the best source in Spain.

If they still sound different, start swapping the drivers.

rgds, sreten.
Hi Sreten,

Thank you for your reply!

When you say "will change the sound"
Is it for the better or I should not mess with it?

Yesterday I checked and in Barcelona the main component stores don't have NP Caps, I'll order on the Internet


Regards!
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