Cable tastic

I have a selection of 2M powerline lites and I’m wondering if there would be any negative affect associated with shortening them so there isn’t a snakes wedding under my hifi rack. They are excessively long and I don’t think they need to be. Can’t think it would change the sound but can anyone provide some expert input here? Thanks chaps.

Lewis, do not shorten them 2m is the optimum length as tested by Naim.

No reason at all not do it, electrically. I was tempted but to preserve a possible resale or recycle opportunity, I have mine folded to reduce length by apr 0.75m in Velcro tape. That said mine live in a closed cabinet powering non-Naim stuff & don’t hang loose down the back of the rack

I’ve got one on my Qb in the kitchen. I chopped off the IEC plug, reduced the length to 45cm and added a Schuko fig 8 plug. It works rather well.

No, it won’t change anything. Just think of all the different lengths of copper we all will have inside our house, let alone leading up to it. A few cm more or less of power cord won’t do anything at all.

They were optimized for 2m so you should not shorten.

But if people believe mains cables are all the same anyway then just plug-in a short standard cheap commercial cable cut to the length you require and if you hear no detriment then you have a solution and sell the other cables.

Otherwise you may shorten - they sound worse - and then you can’t undo it and may not be pleased you did it, but obviously your call. I would not cut them.

The cables have an inductance proportional to length tuned to the ‘bung’ in the equipment-end plug.
The ‘noise’ is mainly at the Naim box getting out not the other way getting in if you look at what causes the noise - rectification of mains in the box - slicing the waveform to charge the regulation caps generates lots of current spikes that then leaves the box on the lead and interacts with the other boxes. That is actually what happens and not so much mains noise from the outside world - there is some of that too but dwarfed by the rectification noise inside the box.

But try it - I suggest the cheap experiment first so you hear what it does.


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My mains leads to 552 and 555ps are 1m self made jobbies using 4mm conductors unscreened and quality plugs…seems to work great… Although I was wondering if screening would be a good idea…connected at one end at the mains plug… PS audio advice…
Like you I was thinking about all the noise being generated by the rectifiers…
Are the Powerlines screened???

‘mornin Rich. I have my own screened cables, the screen is connected to the input end & left floating at the appliance end. Does it make any difference? … it’s the way I do it & I’m not bothered about checking the alternative.
Powerlines are not screened.

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Hello Darkbear , Sorry to Butt in but HHalibut ESQ said you could answer my question below

I have a CD555 and CD555PS unit with no Burndys --the sellerr kept them!

Long story–can you tell me Do the NDS Burndy Pair connect with both the CD and the PSU as per factory setup.

Yes or NO

Thank you so much and sorry for crashing this thread



Sorry Apologies oh DarkBear–I just saw this reply

Thank you ,