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hi there,
a new PSU for my DAC is reaching me in a couple of days; i'm planning to replace the stock DC cable by a new, DIY one; for cable i'll use some shielded IC, and for plug i'll use the Oyaide 2.1 one; the problem is the other side of the stock cable, which uses a rather unusual socket (male) and plug (female); it seems to me they are Aviation Plug GX12-2P;my questions:
1. is there any audiophile version of that connector?
2. how to connect the shield? it seems there is no ground available on those connectors, but the PSU has indeed a ground, since the AC input is the usual one
TIA! best, paco
Follow Ups:
I would also look to upgrade the AC power cable on it.
yep indeed! a beautiful Acrolink 7N with Oyaide 079 connectors is waiting for the PSU to arrive!
That particular power cord configuration should be a fine choice. For use with a similar power supply unit, I built an Acrolink 7N-P4020III power cord terminated with Oyaide P-079 AC plug and Oyaide C-079 IEC connector, and find it to be a worthy expense for the inexpensive PSU. I also built a DIY DC umbilical using mil-spec SPC/PTFE Teflon wire, which performs substantially better than the stock PVC DC umbilical. You might also consider a set of four Herbie's Audio Lab Baby Bootie footers for use under the small footprint PSU.
See link:
thanks! as for 16 AWG silver plated copper in teflon to use as DC cable, i can get this one locally; the specs look great to me
I recommend wrapping the twisted pair with a thick, heavy duty PTFE/Teflon plumbers tape in order to keep the wires intimately twisted together, and to provide a level of resonance control. Use the thick dark gray product, not the very thin typical white colored product, since the thicker gray product will be much easier to wrap around the twisted pair, and will only require 1 layer for the task. Cover the DIY DC umbilical with Techflex sleeving.
Here's a US product (see link below). There must be an equivalent product available in Europe.
good idea! i'll try... also, did you try the tape below, as a final touch?
can you post those directions?
thanks
sorry, what directions?
Oyaide MWA-010T tape features a ferrous material called Sendust with inductive properties not unlike a ferrite bead/core, which tends to do more sonic harm than good when implemented as noise filters positioned on audio cables and power cords. That said, Oyaide claims MWA-010T doesn't degrade audio performance, but other than the Highwire Audio Power Wrap featuring both a high permeability material together with a dissipative material (which can also be unpredictable in terms of truly satisfactory audible benefits), I'm not convinced that a ferrous sheet is a good idea to wrap around any type of cable for audiophile purposes unless I hear the effects with my own ears. While there are a number of applications which benefit from the use of noise filtering sheets, a DC umbilical which doesn't emit detrimental noise in its own right is not the right location to battle noise generated within an audio system via noise filtering sheets, IMHO. A DC umbilical featuring a tightly twisted pair, or a twisted pair with braided shield is sufficient to reject RFI, EMI, digital hash emanating from other cables, cords, and components within an audio system. However, there's no reason other than the expense as to why you shouldn't experiment with Oyaide MWA-010T tape applied to a DC umbilical.
Duster - You strike again with a good observation. My DC power cord for the Serius Receiver upgrade has a Ferrite filter on the cord. Time for another before and after test!
BTW, did you see my instructions for a DIY mil-spec wire DC umbilical project?
I have that PS and Cable on my Chord DAC. It's made very well and nothing wrong with that DC power cable it's made nice, actually the connectors are solid. Why change anything?
you may well be right; i'll wait until try them, and perhaps the only change i'll do is locating the PSU very close to my DAC, and shorting the DC cable accordingly; best, paco
I had messed with the DC cable on a Monolithic Sound Phono PS. I made solid silver wire and it didn't make a difference in fact the original cable sounded really better. The only DC cable that I have read, not used, that made a difference for the Monolithic were these> http://www.revelationaudiolabs.com/
I never tried because they are too expensive, and they had a bad reputation filling orders.
Wait till the PS comes in.
It's a multipin microphone connector intended for aviation, ham radio, CB microphone applications. To the best of my knowledge, here is no audiophile version available. I find the design to be acceptable for an audiophile DC power supply application. Better than a typical coaxial barrel type DC plug, IMO. There is no provision to terminate a ground wire for a shield, but you can run a drain wire out of the back of the connector and fasten it to the enclosure chassis, or to the outside of the connector. I purchased one for an unshielded DIY DC umbilical project from this eBay seller (see link below):
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