how can a line cord affect frequency response ?

Hi Cleo.

Thanks and you're welcome, glad you like Vol.II. I'm still kind of struggling with some of the selections.

Hi Wellfed.

The Z-der came out of our research of power cords. It basically re-clocks and corrects the relationship between the voltage and current that comes out of the wall. You're welcome to contact us directly if you'd like a more thorough explanation or a URL.

Sell, sell, sell! (what an antagonist I am) LOL!

Cheers!

Robert,
RSAD

Hi Mrt.

Since AC power cords seem to have kind of become my latest fascination, I'll chime in here.

As important signal carrying cabling is, I've come to the conclusion that AC cords are a cabling system's foundation. Very good reason for this...think power supply. All the music you listen to is the power supply being modulated and controlled by all the other circuitry.

In a nutshell, the reason power cords can have such an impact on the music we hear has to do with their power delivery characteristics. Counter to what many think, big gauge/low DC resistance is way down on the list of design priorities...with our AC cords anyway. Almost all aftermarket cords suffer from power deliver characteristics that are not optimized and as such, most cords act as euphoric coloring devices. The electrical parameters of these different cords are all over the place. The result is as you've experienced...some cords sound big and warm and some sound detailed but lean.

I don't think that to strike a balance between big and warm / detailed and lean is really the issue or should be the target. What does the power supply need to be able to respond to all the complexities of the playback software should be the target in our view.

When the power supply's demands for meeting it's task are met, it's really quite amazing what you'll hear. Details from top to bottom that were previously buried suddenly become apparent and can really reveal the vitality present if good care was taken in the recording.

So, hope this gives some insight Mrt.

BTW, I'll shamelessly put a plug in here...more so 'cause I'm simply very excited 'bout what's going on here. The Poiema!!! AC cords have been a great choice for those wanting a cord that doesn't perform coloring duties. The Alethias AC Cord is just around the corner and, as our top shelf offering, it's freakin' killer!

Kind Regards,
Robert
RSAD

Mrt, I did read your post and I understood what you wrote. Please re-read my post and correctly understand what I wrote. You simply asked for an explanation and I gave ours. I didn't say that cabling that provides coloration duties was an evil thing. While I understand the value of coloring the sound and some folks preference for components that do such, it's simply not my approach...that's all. It's a good thing there is more than one road to Euphoria since everyone's preference for the big "E" is a little different.

"perhaps i want to use cables to flavor the sound of a stereo system." Okay, good for you!

"your comments are unprofessional, and unfortunatively indicative of what's wrong with the high end industry." Sorry you feel that way. Some wonder why more manufacterers don't post more often. I don't. I anticipate almost every time I post I'm gonna get slugged for something. I could also say that your apparent inability to understand what's written and the overly suspicious attitude that draws off base conclusions is part of what's wrong with our society. I bet having a beer with you would be fun...really, no slam.

Cheers Friend.

Robert,
RSAD

Hi Mrt.

if you have heard products, in this case power cords, which to your ears affect the sound in a certain way why not mention them, especially if someone requests such information.

You'll never see RSAD do that on the boards. I would suggest if you want opinions on how a particular product sounds, ask other users who enjoy those offerings or the manufacturer. Not ask one manufacturer to comment on a competitor's efforts on a public forum.

Kind Regards,
Robert
RSAD

Hi Mrt.

Your listening preferences stated HERE.

I would say the "P"!!! I/Cs are a great I/C that didn't meet your listening biases. Assuming you have listened to the "P"!!! I/Cs I would say this: Had you contacted us for your purchase instead of buying on the used market, I probably could have saved you some time and expense. Seeing what you prefer with your music playback, I would have been very hesitant to recommend our products to you. I've told people time and again that have contacted us that if they need cabling to sound a certain way, then by and large our offerings are going to be a crap shoot as to whether they'll work for a given set of ears. If one is looking for cabling that offers a least amount of editorial, then what we offer is going to be the ticket...says I anyway.

I point this out because too many times when a enthusiast doesn't like what a particular component brings to a music system, cables or otherwise, they tend to make comments like yours that insinuate the component isn't very good. Many times that's not the case at all...it simply didn't meet your biases.

Kind Regards,
Robert
RSAD

Saw a couple posts about correctly designed power supplies. Certainly correctly designed PSUs are important and contribute significantly to good sound but unless I'm mistaken, most PSUs have nothing except maybe a snubber before the primary. This does nothing for the poor quality AC that comes out of the wall and it's relationship to the primary.

There are a myriad of line conditioners that effectively address some of the issues of poor AC quality and improve sound to one degree or another. But, as I see, there are other issues left un-attended.

I prefer AC product designs that address what I see as un-attended issues and, a specifically designed power cord can do that. In my experience, when these other issues are addressed, other AC gremlins become significantly less relevant and line conditioners become more of a preference than a necessity. We use no line conditioners here and I'll assert that our system here is probably on of the most musical and life like presentations you'll experience. It has it's limitations like any other system but.... And yes, we use all our AC, cabling and loudspeaker products to help accomplish what our system does. This all goes to the original topic and question of this thread. Forgive me if you don't like how I'm willing to answer.

To appease Mrt, other AC cords I have respect for come from Prana, PAD, VD, and Micro-Omega. Though there are some commonalities (as well as vast differences) between these products and what we're doing, I suspect the materials and applications are for different reasons and so the design goals are optimized differently.

So Mrt, are you ready to buy?

Quack, Quack!
Robert
RSAD

Mrt, I didn't know ducks could quake. That must be one feakin' duck! Look out energizer bunny...

Free quaking duck with the purchase of any of our power cords till December or till all ducks have gone South.

Kindly,
Robert
RSAD

Hi John.

Robert, how can one lay his/her hands on one of these Vol II discs?

It's in there. ;) Or do you mean how can anyone get Vol.I or II?

Best,
Robert
RSAD