Author Topic: Power cable DIY opinions  (Read 2991 times)

Offline Jozua_2019

Re: Power cable DIY opinions
« Reply #30 on: October 19, 2021, 10:47:44 AM »
@pwatts

Just wondering:

a) Is there any benefit in using multi strand speaker cables with some silver in it as power cables and

b) Why would a 2-3m super expensive main cable from the wall plug makes a difference?  Something seems to be happening (inductance  or some kind of filtering?) in the 2-3 m distance compared to the factory supplied cable ?

Regards

Jozua


Power cables won't interfere with speaker cables. Interconnects, HDMI, USB etc. different story.

Offline pwatts

Re: Power cable DIY opinions
« Reply #31 on: October 20, 2021, 07:41:58 AM »
@pwatts

Just wondering:

a) Is there any benefit in using multi strand speaker cables with some silver in it as power cables and

b) Why would a 2-3m super expensive main cable from the wall plug makes a difference?  Something seems to be happening (inductance  or some kind of filtering?) in the 2-3 m distance compared to the factory supplied cable ?

Regards

Jozua

a) It can probably work well, although a DIY shield/screen will be recommended which is not used on speaker cables since speaker cables are driven by low-impedance outputs that typically do not need screening. From a safety/legal/insurance perspective, this is not encouraged since speaker cables are not double-insulated or made to withstand mains voltages so an extra sheath should be added. Something like Nordost will probably be the worst. I will also not suggest using something with large distances between conductors such as vdH The Magnum but rather something more tightly wound (but still with decent inter-conductor insulation).

b) amplifiers modulates the mains, so if speaker cables or other internal cabling changes can make a difference, why will AC cabling be any different. As to the argument of why it matters when there are cheap Surfix running to the DB and then aluminium cable to the power station, it is about what happens in the 'last mile'. The closer to the device the more it matters. Similar as with speaker cabling, the standard RLC parameters are not the only thing that counts, but also bandwidth, screening and filtering. The last two is where I do no expect speaker cable to necessarily compete with dedicated audiophile AC cables.

Admittedly, I am not an authority on this and as with so many things in audio there are no universal truths: some people get the best performance by adding ferrites like a bead necklace, others say it's from the devil. Some filter the individual conductors (differential-mode) and others the entire cable (common-mode). So in the end of the day synergy and personal taste also plays a role, which makes sense since the power supply being driven will have different electrical parameters if comparing a large toroid to a small SMPS for example.