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Is it Overkill to use Duelund Caps in Power Stage (Counterpoint SA-5.1)

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Firochromis

Firochromis

Member
Joined 2011
Hi people,

I have a Counterpoint SA-5.1 pre-amplifier in my system which has phono and line stage upgrades performed by Mike Elliott. He used TRT Dynamicaps which are fairly good.

Now I want to change the power stage caps which are 0.47u at the right hand side of the chassis. My question is, is it overkill to use a Duelund CAST PIO cap (or similar) in the power stage, which I assume, is not in the direct audio line?

Any comments are appreciated...
 

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Davec113

Davec113

Member
Joined 2007
You could go with Mundorf M Tube Caps or Clarity TC series caps to replace the electrolytics, but they are much larger and probably won't fit where the orig. caps are. I would only use more expensive caps as output coupling caps, and even then Duelund are crazy expensive....
 
Firochromis

Firochromis

Member
Joined 2011
Hi, I mean the blue capacitors at the right hand side of the chassis, especially the bigger two. That part of the SA-5.1 pcb is the "High Voltage Regulator" section and the only un-touched part of my pre. That's why I thought I should upgrade them.

By saying "electrolytics" do you mean Dynamicaps?
 
Firochromis

Firochromis

Member
Joined 2011
Thank you all, for your helps. I really appreciate it. One final question about this topic.

Below pic is the section of pcb we are talking about. I -almost- decided on V-CAP TFTF caps. I'll buy 2* 0.47uf - 300 VDC TFTF and 2* 1uf - 300 VDC OIMP (since 1uf TFTF are rather big and expensive).

Now that's leave behind the upper two. What should I do for them? They are 110uf - 100V and 10uf - 400V caps. ClarityCap, AuriCap and some others have 10uf - 400V caps but I haven't seen any 110uf - 100V cap.
 

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Firochromis

Firochromis

Member
Joined 2011
I must thank thoroughly to the people participated to this thread. From their replies I understand that I'm making some *small* mistake.

I said before, I know little about electronics so I just realized that I don't need 0.47uf caps but 220uf caps. Because I was thinking that, "0.47uf" title is representing both the small white cap AND the blue big cap under it. I just learned that what "cap bypass" means :) Sorry folks for taking your time. This thread was a BIG mistake, but I learned a lot... :)
 
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