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Old 14th January 2012, 02:31 PM   #1
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Default B1 without output caps

Is anyone here running B1 buffer without output caps (or is it without input cap???). I've read it somewhere that you can omit them to improve sound.

Last edited by xecluded; 14th January 2012 at 02:37 PM.
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Old 14th January 2012, 02:58 PM   #2
massimo is offline massimo  Italy
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Look for DCB1
It's a different design though, deeply "inspired" to the original Pass's B1, but different (dual supply)
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Old 14th January 2012, 03:11 PM   #3
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Yeah, i was aware of that though i am more interested to learn about the standard B1.
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Old 14th January 2012, 03:16 PM   #4
xenob is offline xenob  Austria
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You can only ommit them if your poweramp has inputcaps.
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Old 14th January 2012, 04:11 PM   #5
AndrewT is offline AndrewT  Scotland
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The B1 is AC coupled.
This is because the input operates at a voltage that is not @ audio ground.
and
Because the output operates at a voltage that is not at audio ground.

If your source can drive a high DC voltage input then you may be able to omit the input cap.
If your receiver can accept a high DC voltage input then you can omit the output cap.

If either of these are not the case, then you will break at least one end of your equipment.

A question:
How can you be an active Forum Member for over 3 years and need to ask?
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regards Andrew T.

Last edited by AndrewT; 14th January 2012 at 04:39 PM.
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Old 14th January 2012, 04:12 PM   #6
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Quote:
Originally Posted by AndrewT View Post
The B1 is AC coupled.
This is because the input operates at a voltage that is not @ audio ground.
and
Because the output operates at a voltage that is not at audio ground.

If your source can drive a high DC voltage input then you may be able to omit the input cap.
If your receiver can accept a high DC voltage input then you can omit the output cap.

If either of these are not the case, then you will break at least one end of your equipment.
Now i understand. Many thanks!!!!
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