by Michael

ELROD power cords – with and without the Nordost ViDar

As people may (or may not, it has been awhile) remember – we have been trying to determine how effectatious, sonically, it is to burn in the ElRod power cords on the Nordost ViDar cable burn-in device.

The short and sweet is… not that much.

We tried this on the low-power ELROD EPS-2 Signature power cables. One was on the ViDar for 2 weeks or so. One wasn’t. For this test we put both in the system for two weeks and then compared them – trying them both on the Emm Labs CDSA player and both on the Audio Note CDT3 transport.

Neli heard no difference and I thought the un-vidar’ed power cord might have a wee little better separation and emotion… in both tests … but un-ViDar’ed cord was always tried after the other cord and maybe I was just settling into the song a little better? Perhaps. In any case, the differences are so subtle, compared to what we usually talk about on this blog, as to be insignificant.

Anyway, the conclusions we reached was that the ViDar, designed for low power interconnects and cables, on which the ViDar kicks tush – does not seem to have much effect on correspondingly high current power cords. At least not these cords on these components.

In fact, the taking off of the power cord, and letting its internal capacitors discharge for about 30 seconds during our swap in and outs during this test (as we rushed one upstairs and the other downstairs to quickly put them on the other system during this test – trying to keep them charged up] might have had more effect on the sound. Hard to tell.

So that is our next test for the ELRODs – charged versus un-charged. It takes about 3 – 7 days for the power cord’s capacitance to fully charge, so we will compare one that has been in the system for awhile versus one that has not. A test that does not allow us to go back and forth – i.e. to repeat the test except once every seven days. And it requires us to have a power cord just sitting around doing nothing – not something that we can afford here these days with all four systems fully operational.

But I guess we are doing it anyway.


The power cord with the ‘V’ tag Neli put on it to designated its ViDar’ed status. Otherwise things might get a wee bit confusing… now WHICH cord was that again?


The EPS-2 Signatures are about 1/2 the size of the high-powered ELRODs.


The cord on the back of the EMMLabs CDSA.


The Audio Note CDT-Three transport. It is not hooked up because…


… several of our HRS M3 Isolation Bases and Neli were out on audition during this photo shoot. So the HRS SXR and MXR racks were looking like Macy’s the day after Christmas [OK, yes, so I have been watching a lot of old movies lately].

in Elrod / High-end Audio HiFi and Stereo / Nordost 0 comments
 by Michael

How Much Fun

We have so many things in the queue … so many things lined up to try, that it gets a little overwhelming. The exact sequence of things gets a lot of discussion and seems to be updated on an almost hourly basis.

We have:

1. Compare the charged ELROD powercord that has been on the Nordost ViDar cable burner to a charged ELROD that has not been on the burner – i.e. How does the ViDar affect performance? We already did the cold (uncharged) Vidar’ed ELROD compared to the hot (charged) un-ViDar’ed ELROD. [Note, ELRODs take about 3 days or so to charge up their capacitors]. While this was ijntersting, and we will report on it, not being the brightest bears in the woods, we finally realized that this was kind of confusing [I bet you are confused, too, by now :-)], overloading the charged versus uncharged test with the Vidar’ed versus un-Vidar’ed test.

I said it was fun. But it also requires a degree in Research Methods… apparently.

2. Compare the Kegon Balanced with the old high-gain Kegons. We can do this on the Kharma Mini Exquisites – which we anticipate will show that 1) … well, let’s not make any predictions [see, I’m getting smarter. Maybe there is hope…]. But the Kharma is actually quite hard to drive, especially the bass – especially if you want that big open Kharma sound [Kharmas always sound exciting and delicious and big, but not always that room pressurizing wrap-around that many people crave like hot butter on potatoes].

3. Compare the Nordost ODIN speaker cable to the Jorma Design PRIME speaker cable on the Marten Coltrane Supremes. This will be… well, there may not be a winner. I expect the ODIN to be more dynamic, which the Supremes love, and the PRIME to be more detailed, which the Supremes love. But for all I know I am getting it exactly backwards. That’s what shootouts are for. Proving it one way or another [at least with respect to the equipment we have here – we do try to perform part of a shootout on a completely different system to make sure that out results more or less reflect the general case].

4. Compare the Kharma Mini Exquisites to the Audio Note SEC High Efficiency Signature speakers. OK, yes, completely different… but both are 2-ways and, well they were the same price but now the Minis are $60K [seen the dollar lately?] and, well the AN speakers are… we’ll know when Neli gets the price list out [uh, oh, she’s gonna smack me when she reads this… I am already bracing for the impact… hurry up and finish this so I can delete it before she sees it :-)]. I expect the Kharmas to be more detailed and the AN more dynamic. Duh. AN is almost horn-like and Kharma has that legendary midrange resolution. But what else will we hear?

5. Compare the M1 phono stage to the Lamm LP2 phono preamplifier. OK, Neli thinks this test is stupid too… but I want to hear the difference in character between the two. We’ve had a number of other inexpensive and expensive phono stages in here, so this is not all THAT outrageous.

6. Compare the old EMM Labs CDSA to the new one with the upgraded transport and feet. We should be getting close to getting 700 hours on the new CDSA soon now, one would think [I don;t have a little 700 hours cooking timer on it or anything].

7. Oh yeah, we still have to do the interconnect shootout where the signal is quite large, between the preamp and the amp. We actually point to a system periodically and say ‘oh, this would be a convenient time and configuration to perform the aforementioned test’ [well, we don’t use the word ‘aforementioned’ in casual conversation, sorry]. But do we sit down and do the shootout? Noooooooo. It does take about 6 or 7 hours of focused concentrated listening, so it is hard to find the time. But soon….

8. We want to compare the high-power ELROD powercords to the low-powered ones on the Lamm ML2.1. At what point to low-powered amps draw high-power? Just what IS the difference in sound between the two?

9. I am sure there is a 9. And 10….

in Audio Note / Elrod / Emm Labs / High-end Audio HiFi and Stereo / Jorma Design / Kharma / Nordost 0 comments
 by Michael

Burning in the ELrod power cord on the Nordost Vidar

We have to jury rig the Vidar in order to burn in power cords.


The Vidar passes a very complex sequence of low power signals over cables when it is burning them in. We have run two full cycles, about 8 – 9 days, s far.

How this works for power cords, which one might think would like to be broken in with, say, a monstrous 10 amp signal, we’ll see in the upcoming shootout between this and the exact same powercord that has just been sitting in the system on a transport.


We will probably have to do two shootouts, because it takes about 3 days for an Elrod power cable to full charge up, because they have a large amount of capacitance.

So two shootouts, unless the Vidar’d powercord is obviously better: one with the Vidar’d power cord straight off the burner,. and one with the Vidar’d power cord sitting in the system somewhere charging up for 3 days so that both it and the UN-Vidar’d powercord are BOTH charged up.

Hard work these shootouts…. or maybe just hard work sometimes explaining them 🙂

in Elrod / High-end Audio HiFi and Stereo / Nordost 0 comments