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Old 3rd March 2012, 01:35 PM   #1
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Default cap upgrade worth it?

Hi, I've got a Chinese amp here (Yaqin) and the only caps in the signal path are the coupling caps between the PI and the power tubes. The caps they used look to be these Pilkor (Philips) caps.
Do you think a noticable improvement could be made by changing these out for a higher quality cap? The sound is actually quite good, but could an upgrade remove any residual graininess to the sound? Any recommendations? Thanks.
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Old 3rd March 2012, 01:48 PM   #2
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Those film caps shouldn't be too bad.

Try bypassing them with some 1nF Polystyrene caps to see if that makes any difference.
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Old 3rd March 2012, 11:50 PM   #3
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Hi , I use the Pilkor ( Philips 378MKP series ) in my OTL PL36 amp and they sounds very good to my ears .
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Old 4th March 2012, 02:31 AM   #4
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Thanks guys,
I guess I'll leave well enough alone!
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Old 4th March 2012, 02:51 AM   #5
DHT112A is offline DHT112A  United States
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The caps in your picture are rated X2 intended more for EMI suppression and probably not the best for audio.
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Old 4th March 2012, 03:59 AM   #6
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Thanks for the reply,
is it worthwhile to change them in your opinion?
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Old 4th March 2012, 04:04 AM   #7
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X2's are also a "safety" rated cap, right? Is this necessary for a cap that's coupling stages together?
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Old 4th March 2012, 04:05 AM   #8
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Quote:
Originally Posted by rntlee View Post
Thanks for the reply,
is it worthwhile to change them in your opinion?
DHT112A is right! you should use the right ones for audio like:
Sonicap,Auricap,Mundorf etc
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Old 4th March 2012, 04:08 AM   #9
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Do you think they used X2's because they will fail open, and not shorted?
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Old 4th March 2012, 05:14 AM   #10
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Quote:
Originally Posted by rntlee View Post
Do you think they used X2's because they will fail open, and not shorted?
More like they were the right price.
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