Power conditioning question

I think you are touching an important mistake here. Almost everybody talks about power consumption on average or up to a certain ms time before the fuses blow. But we also know that the fuses are a culprit themselfes . It is because nobody cares about the VERY short time measurement, where e.g. power amps can draw 80 to 100 A , even if the fuse is only 20A . Thats what defines dynamics. And that is also why supercapacitors filtering the power supply of your cable or fibre modem provide so much better sound, due to the fact that they can provide A LOT of current for a very short time if needed. I am in this hobby for a while ( more than 50 years) but only last years/month I am discovering how much short time power delivery can matter.

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Hi Reinhard, Welcome to the forum! While I think your point is valid for power amps delivering hundreds or in some cases even thousands of Watts, I am not sure how relevant it is to source components which is what we are talking about here.

The peak power consumption of the Rossini is specified as 28W (0.25A @110V) and it is shipped with a T2A fuse (slow blow chosen presumably to deal with the inrush current of the transformers). So even if the instantaneous current draw exceeds 2A, I still argue that a 14 AWG power cable (20A) is generously overspecified.

This was in answer to @glevethan’s question whether it was safe to drop from 11 AWG to 14 AWG for the Rossini and I still maintain the answer is “yes”, do you disagree?

Here I agree with you, even I would try it out with my ears, because I have had so many cases which technically sounded impossible, but still brought changes I could hear. If you would have asked me few years ago if USB cable can "sound " different, I would have laughed at you. Nowadays I surprise friends with a little supercap in the ethernet hub PSU, even its galvanic separated before and after. Hifi/ Highend is always full of new surprises.

Are you sure? Checkimg the Manaual it says it has a 20x5mm T1AL. That seems in line with other dCS full size products.

You’re quite right Pete, T1A it is, my mistake. But the point remains, this is 4x the expected peak current draw of the unit at 110V and a 14 AWG cable is rated at 79x that expected peak draw.

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