LC Audio story on current woppling?

[jean-paul]

Of course small caps are less costly than large ones. What I meant is that 5 x 1000 uF 50 V are more expensive than 1 x 4700 uF 50 V for instance.

I hope the link works:

http://nl.farnell.com/jsp/endecaSea...ch&Ntt=panasonic&comSearch=true&No=25#results

At Farnell a 1000 uF 25 V Panasonic FC costs 82 eurocents, a 2200 uF 25 V Panasonic FC costs € 1.27. What is cheaper when the same capacity is required ?

 

[LBHajdu]

Over here if I buy 4x15,000uF@50v Panasonic in big cans, and I buy 60x1,00uF@50v Panasonic in small cans. The small cans are less costly. This is mostly attributed to the large volume discount on the 60 caps with is almost 75% @ (200caps) , if I remember correctly.
Leve

 

[Lars Clausen]

If you can't use one big cap, better to use 25 small ones, than 2, 3 or 4 semi big ones. Why? Because the smaller ones have a large internal resistance compared with the combined low resistance.

A 100 uF may very well have 1-2 Ohms, when you put 25 in parallel, the total resistance is down to 0.04 Ohms which is ok for a 2500 uF cap. This way current woppling is kept down. (If it exists )

Anyway still better to pay the extra 25c and get one big cap

 

[LBHajdu]

I sometimes get very frustrated with this forum. I’m always getting contradictory advice, power supplies seem to be a particularly divisive topic.

So your recommendation is that one big cap will sound best. It has however been stated before the big caps charge / discharge very slowly (why is this) . Wouldn’t this effect be more detrimental to the sound?

For the same money I can get a lot more uF in small cans, does that play any roll in the decision?