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Sansui AU-517 caps

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Posted on October 26, 2020 at 01:10:57
Akolegov88
Audiophile

Posts: 393
Joined: January 7, 2014



My greetings to Asulum members!

I repeat my question posted to the Vintage Asylum:

Today I decided to open (for the first time in 4 years) my Sansui AU-517 integrated amp purchased 4 years ago from UK in order to blow away the dust and to look inside for bulging and/or discolored caps, etc.

I am not a tech and cannot make competent conclusions, but I noticed some brown-color trace in one or two caps mounted on a PCB. Perhaps, it is just a glue (goo) residue?

I am posting pictures and will appreciate your comments and opinions.

 

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RE: Sansui AU-517 caps, posted on October 26, 2020 at 01:13:39
Akolegov88
Audiophile

Posts: 393
Joined: January 7, 2014



One more pic showing smaller caps:


 

RE: Sansui AU-517 caps, posted on October 26, 2020 at 01:15:36
Akolegov88
Audiophile

Posts: 393
Joined: January 7, 2014



Oops, I posted the same pic but now it is different:

 

RE: Sansui AU-517 caps, posted on October 26, 2020 at 01:21:48
KanedaK
Audiophile

Posts: 2519
Location: Brussels
Joined: April 27, 2010
 I believe the brown stuff is just glue, but it doesn't matter: any amp as old as your Sansui is due for a complete recap. Your ears will thank you, and your amp will be safe.

 

RE: Sansui AU-517 caps, posted on October 26, 2020 at 01:41:39
Akolegov88
Audiophile

Posts: 393
Joined: January 7, 2014
 Thanks, I will consider recapping by a competent tech.

 

Forget recapping, posted on October 26, 2020 at 21:22:02
Mike K
Audiophile

Posts: 13976
Location: 97701
Joined: September 23, 1999
 spend that money on a new amp. Your ears will thank you.

Lack of skill dictates economy of style. - Joey Ramone

 

RE: Forget recapping, posted on October 27, 2020 at 02:14:20
KanedaK
Audiophile

Posts: 2519
Location: Brussels
Joined: April 27, 2010
 Recapping will cost maybe 500$.
I'm curious what "new amp" you think of that would beat that Sansui for such a low budget? If you are thinking NAD or Cambridge, I'm sorry, but no.

 

RE: Forget recapping, posted on October 27, 2020 at 08:36:57
Mike K
Audiophile

Posts: 13976
Location: 97701
Joined: September 23, 1999
 I would not purchase NAD or Cambridge. I would certainly audition the
Rega Brio and IO, however.

Lack of skill dictates economy of style. - Joey Ramone

 

15 years, posted on October 27, 2020 at 11:25:32
Mike B.
Audiophile

Posts: 26359
Location: OR
Joined: September 27, 1999
Contributor
  Since: September 1, 1999
 15 years is a general time limit for electrolytics. Bulging and leaking caps are a warning to get it done ASAP.



 

RE: Forget recapping, posted on October 27, 2020 at 18:07:46
airtime
Audiophile

Posts: 11287
Location: Arizona
Joined: February 4, 2003
 Don't listen to him. Recap it and enjoy. The Sansui AU series were some of their best sounding amps Sansui ever made.

 

Recapping that piece ..., posted on October 27, 2020 at 18:47:07
Mike K
Audiophile

Posts: 13976
Location: 97701
Joined: September 23, 1999
 would be like putting a $50 saddle on a $5 horse.

Lack of skill dictates economy of style. - Joey Ramone

 

RE: Forget recapping, posted on October 27, 2020 at 19:49:04
rivervalley817
 I would have a knowledgeable tech scope it for a baseline and take it from there ... his pix seem to show some glue flow that you'll see on older pieces, that's what it looks like, that can, and should be cleaned off 'cause it can become conductive, but if it scopes well and as long as it has a grounded power cord just go ahead and use it, it's 'new' enough that another 5 > 10 volts off the mains won't bother it

it's worth recapping too ... there's modern equivalents, but that's the thing, they're equivalent, not better ... even in inflation adjusted $$

the service manual is readily available so a good tech is where to start

or in so many [more] words I agree

regards,

 

RE: Recapping that piece ..., posted on October 27, 2020 at 19:59:53
rivervalley817
 I like that old saying

here's another: a $5.00 horse is called 'glue'

 

RE: Forget recapping, posted on October 27, 2020 at 22:49:29
Akolegov88
Audiophile

Posts: 393
Joined: January 7, 2014
 Apart from Sansui, which I like, I have four other amps including Eico HF81, Eico ST-40 (both restored by US sellers), Cary SLI-80 and a Chinese SE EL-34 based amp. Quite enough, I believe.

 

RE: Recapping that piece ..., posted on October 28, 2020 at 01:17:16
KanedaK
Audiophile

Posts: 2519
Location: Brussels
Joined: April 27, 2010
 I'm sorry but that's nonsense.
Our friend the OP has quite a few other amps, it seems, so there's some logic in thinking he probably likes this amp very much, since it's being used.
Sansui made some great amps, in the end it's all down to personal preference and system synergy, but a new entry level Rega won't necessarily be "better" IMO.

 

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