DIY DC power cables

[seeteeyou]

 

Holy Cow, we could actually pay 400 bucks/foot for Audioquest AG-4 @ 15 AWG (StarQuad)

 

http://www.audioquest.com/resource_tools/downloads/pricing/AQ_PB_US-Retail_16-05_r16_Web.pdf#page=38

http://www.pphifi.cz/images/ceniky/audioquest16SR.pdf#page=36

 

DBS Voltage Upgrade Kit
http://www.audioquest.com/audio-enhancements/dbs-voltage-upgrade-kit

http://www.audioquest.com/wp-content/uploads/2011/12/DBS.pdf

 

This plug should be good for anything up to 8mm OD

 

https://www.computeraudiophile.com/forums/topic/30376-a-novel-way-to-massively-improve-the-sq-of-the-sms-200-and-microrendu/?page=62#comment-658885

 

[seeteeyou]

Chord Quetest requires only 1A @ 5V to operate, therefore LPS-1 should be good to go.

 

However, we still need to terminate one end with a micro USB connector because of that micro USB power input.

 

Are the ones from Hirose the only "decent" micro USB connectors out there?

 

https://www.hirose.com/product/en/products/ZX/

https://www.mouser.com/ds/2/185/ZX_catalog-1066377.pdf#page=8

 

In addition, it only needs pin #1 for +5V and pin #5 for ground respectively. What are we supposed to do when StarQuad cables have 4 wires?

 

[seeteeyou]

On 7/24/2019 at 2:11 AM, Nenon said:

I haven't ran across Neotech 16AWG silver wire.

 

I could only find a few sellers here in Asia, they're asking for approximately $145 per meter and no wonder most online stores aren't willing to sell a relatively expensive 16AWG silver wire

 

https://goods.ruten.com.tw/item/show?21821076194416

https://labkable.com/products/NEOTECH-UPOCC-Silver-Hook-up-Wire-%28單晶銀機內接線%29.html

 

Then I read something below and 5N silver should be as good as it gets

 

https://doublehelixcables.com/faq/

Actually Oyaide made their own 5N silver FTVS-910 for AES cables but that looked like a potential candidate for DC cables to me

 

https://oyaide.com/catalog/products/p-3628.html

https://product.rakuten.co.jp/product/-/c4aa9cba0aa7debe6454354272d7401e/

http://www.oyaide.com/ENGLISH/AUDIO/products_category/interconnects_cable/pg758.html

 

 

 

 

 

Diameter of each silver wire is 1.05mm so that's roughly 18AWG

 

https://www.rapidtables.com/calc/wire/awg-to-mm.html

 

Outer diameter is 8.5mm and this particular DC plug is good for anywhere between 6.3 and 8.3mm

 

https://www.atl-newcablestudio.com/DCHead.html

https://item.taobao.com/item.htm?id=556314328789

[seeteeyou]

If there were enough space for 4 little boxes plus another one with LT3045, maybe Schröder Method could be another avenue for DC cables?

 

https://www.usaudiomart.com/forum/viewtopic.php?p=13858#p13858

https://audiophilestyle.com/forums/topic/30376-a-novel-way-to-massively-improve-the-sq-of-computer-audio-streaming/page/666/?tab=comments#comment-1059624

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I can say the sound quality improvement is something else -- I don't want to go into hyperbole but it's a big jump with dramatic improvement in everything. That's after a couple days of burn in, so hopefully further improvement.

 

It's meant to be an improved version of this mod with Mundorf silver gold

 

https://www.usaudiomart.com/forum/viewtopic.php?p=9753#p9753

https://www.usaudiomart.com/details/649459989-dual-cat-poe-dc-31-dc-to-dc-hubs-sota-dc-digital-power-chain/

 

Though here's the catch about AliExpress, their worldwide shipping is kinda "free" but toggling the destination between Hong Kong and United States would result in $9.17 versus $25.55 a piece

 

https://www.aliexpress.com/item/32897304783.html

 

Nobody tried a different flavor like this one yet, though the price is right for shipping to US

 

https://www.aliexpress.com/item/32963331310.html

 

And then the costs of 16 Ethernet cables do add up pretty quickly unless we're able to build them ourselves. Some cables might sound better than the others but the brand UGreen seemed to work well for Empire_City_Denizen et al.

 

Not exactly interested in feline jokes but anti-rodent CAT6A cables like these guys (with metal armor) could be an interesting option in terms of shielding

 

https://www.amazon.com/SANWA-Japan-Brand-Jacket-Ethernet/dp/B07RRVF1SJ

 

Once again it's still quite a bit of money when we're getting 8 × 2-pack Sanwa = $117 while applying that 10% off coupon would bring it closer to 100 bucks. Finally we'll also need 3 (short) DC cables for 4 passive PoE boxes.

 

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BTW, Helix geometry could also work somewhere else

 

https://systems.audiogon.com/systems/8787

https://forum.audiogon.com/discussions/duelund-conversion-to-diy-helix-geometry-cabling/post?postid=2042201#2042201

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USB cables made using Helix design principles are simply outstanding.

[seeteeyou]

FYI - it's quite interesting to see this (fairly extensive) mod for the PSU, plus another flagship DC cable with a separate ground connector on top of woo-woo quantum stuff

 

https://www.hiendy.com/hififorum/forum.php?mod=viewthread&tid=135912

https://www.hiendy.com/hififorum/forum.php?mod=viewthread&tid=135954

https://www.hiendy.com/hififorum/forum.php?mod=viewthread&tid=136838

https://www.facebook.com/permalink.php?id=475207072498951&story_fbid=3534622159890745

 

Are all XLR connections created equal at 110Ω? If so, this particular XLR jack (w/ pure copper contact pins) ain't having the lowest impedance by any means

 

https://www.aliexpress.com/item/32915836871.html

https://www.amazon.com/VIBORG-Chassis-Connector-Insulator-Rhodium/dp/B07HK836PL

 

And then IMHO it's kinda funny to pick this XLR connector w/ phosphor bronze contact pins for aesthetic reasons

 

http://www.oyaide.com/ENGLISH/AUDIO/products_category/interconnects_cable/pg516.html

 

Finally we've got this DC connector for 45 bucks a pop

 

https://www.atl-newcablestudio.com/DCHead.html

https://www.facebook.com/permalink.php?id=664199480349433&story_fbid=994036170699094

 

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In terms of conductivity, I guess that maybe something with UP-OCC copper contact pins might work better when compared to that Oyaide FOCUS 1

 

http://wp.neotechcable.com/xlr-plug/

https://www.hificollective.co.uk/catalog/components/connectors/xlr-sockets-plugs/neotech

 

Of course it's still hard to beat the impedance of Jaeger

 

https://www.hummel.com/fileadmin/user_upload/hummel_com/Kataloge/PDF/EC/CC_JAEGER_Kat/Kat-JC_CvI-en-070617-smallres.pdf#page=14

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< 0,0015Ω ø 2 mm, Depending on thermocouple ø 3 mm < 0,0015Ω ↔ < 0,0045Ω

 

https://audiophilestyle.com/forums/topic/37373-the-paul-hynes-sr7/?tab=comments#comment-733206

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The XL has ultra low impedance (< 1 milliohm) connectors and fine silver internal wiring between capacitor banks, regulator modules and the output connectors.