Hi ack - thanks for the link - I hadn't seen this website nor this page.
The way I read it they put "super conductivity" in quotes, which to me says to take that term as more of a marketing claim than a technical one (or at least it should be taken with a grain of salt). They also mention "with close-to-zero resistance and/or signal loss" - this to me means not superconducting as that achieves non-measurable resistance (i.e. as close to zero resistance as we can determine). I think it's rather an attempt to reduce resistance as much as possible (at room temp) compared to standard wire technology.
That's of course my own interpretation of the wording - and colored by the direct discussions I've had with Albert and Leif - they never at any time suggested that these cables were superconducting and I would be as skeptical as you if they did.
Cheers,
Yes, of course the intent is to point out extremely low resistance, but: a) the alloy that Amir found out from CERN's site isn't offering that at room temperatures; b) they really want to play the CERN/super-conductivity card; c) read below on the importance of 'R' vs 'LC'. Nonetheless, the link I included says a bit more, and here it is:
Ultra Extreme (TM) Bi-Wire Speaker Cable – using “super-conductivity” technology developed for the large Hadron Collider at the CERN Laboratory in Switzerland, a new alloy consisting of rare earth materials, precious metals and ceramic filler enables almost zero resistance to electrical signals down to the millionth of a volt range. For this reason, the Ultra Extreme Cables will let you hear details and sonic holography not heard in any other brand of wire on the market. At extremely low volume levels, you will hear a huge soundstage, bass power and depth that you have never had before experienced!
I disagree that one will hear details and sonic holography because of lower in-series resistance; due to noise reduction and phase correction, perhaps... yes.
Under Steve's system thread, the cables were branded a "revolutionary product" - if that's referring to the super-low resistance, then I'd say FAR from a revolutionary achievement, though a good one, if true. To be more precise, it is inevitable to have resistors in series with the signal path all along the entire chain, including the amplification devices themselves (transistors, tubes). So the alleged fact that these cables offer extremely low resistance is of extremely low importance to me.
As I also mentioned in Steve's thread, the more important electrical properties here are always LC and inevitable phase characteristics, and there is no information about that. In a circuit design, we often talk about the collective capacitance of the circuit and/or the collective inductance of the circuit, of which the cables are a part (e.g. Spectral/MIT synergy), not so much about the in-series resistance, in order to then tune phase issues (among other things). Resistance does play a role - it is responsible for losses converted to heat - but is inherently far lower in importance, especially here with cables where the losses would be far lower than in any circuit employing resistors and amplification devices. This is in sharp contrast to the LHC which must achieve extremely low resistance for super-conductivity, in order to get the strongest magnetic fields; and toward that goal, there are additional, more sophisticated techniques to strengthen (even double) the magnetic field toward the direction you want, like
Halbach arrays of magnets. So "super conductivity" in these cables, with or without quotes??? Far from it, and there are far more important problems to solve in signal transmission.
If one wants to read up on how cables can and are being _properly_ used in a circuit, read no further than Keith Johnson's DMA-300 amplifier
http://www.spectralaudio.com/DMA300/DMA300.htm wherein he says:
New Solutions to Old Interface Problems
All connections to the DMA-300 have internal interfaces to assure ideal conditioning as well as optimum transmission of audio signals and power. These crossing points or matching networks also remove interferences that would otherwise enter sensitive circuitry and create unwanted signal propagation and noise. Traditional solid state amplifiers have always employed output terminating networks to provide an impedance or compliance to accommodate the load of the speaker cable and crossover in order to protect the amplifier. Unfortunately, the problems associated with using conventional output networks are severe, ranging from non-linear and unpredictable loading behavior to magnetic field propagation and noise. All these problems degrade amplifier performance and sonics. In Spectral amplifiers the sources of these distortions are eliminated.
Stabilizing networks, resistors, chokes and inductors are replaced with tailored precision woven cables which eliminate non-linearities, noise propagation and magnetic fields. Now the signal from the output devices to the cable load is pristine, isolated and uncompromised by passive component problems.
Precision Output Interface Cables
In the DMA-300 dedicated output interface cables connect the high power output devices directly to external speaker cables. These are massive wires inside the amplifier that have large copper conductor crossections to handle high power. They are constructed from fine oxygen free wires in groups with a stranding configuration that cancels both magnetic and electrical fields.
This configuration along with dedicated matching components at the opposite end of the speaker cable assures a seamless and precise transmission path between output devices, loudspeaker interfaces and crossover components in speakers [ack: that's the critical problem that synergy is attempting to solve]. Its carefully tailored impedances provide a high frequency compliance that smoothly transitions or steers electrical currents between the positive and negative CMOS output fets. Responses throughout the whole system are powerful, fast and extremely quick settling.
To be honest, I am more interested in that patent-pending noise reduction technique than anything else. Still interested to audition them at home as well.