Hello everyone......Myles asked me to join in and comment, and especially to correct any misinformation. I read through every post on the 7 pages of commentary to be certain I didn't miss anything of note. It seems there is, indeed, a good deal of misinformation regarding the audiodharma Cable Cooker's output signal and overall capability. So if you will kindly indulge me, I'll do my best to both inform, correct, and dispel such misinformation point-by-point.
Firstly, the Cable Cooker's output signal combines high voltage, high current, plus a swept square wave covering the range of 0 DC to just a hair over 40Khz. This steady-state signal outputs 125 mA on the low-level circuit (for interconnects) and approx. 1.9 Amperes on the high-level circuit (for speaker cables & power cables). The Cable Cooker utilizes an outboard 12V / 2.5A universal switching power supply. Steady-state voltage output measures out at approx. 11.8V on the low-level circuit and 11.4V on the high-level circuit.
The high-level circuit is also used for various audio transformers and all manner of high-quality capacitors such as Audience Auricaps, Dueland CAST, Jupiter's, Mundorf's, and V-Caps (the Teflon varieties as well). And not to be remiss, the Cable Cooker does an outstanding job on a host of passive AC line conditioners, including Audience (they pre-condition theirs before shipping), Acoustic Revive, Audio Magic, BPT, Isoclean, Oyaide, Running Springs, Sound Application, Synergistic Research (they pre-condition theirs as well), and yes, even various models of Shunyata.
To further elucidate the swept square wave's capabilities (per jap's comments re: "frequency. The higher the better."), please note that while the upper frequency is calibrated (via oscilloscope) to just over 40Khz, this calibration does not take into account the harmonics that reach into the megahertz. The "higher the better" indeed.
To "edorr", a slight correction to your statement ("The cooker probably generates high frequency at low voltage."), and "microstrip" ("cooker generate only low voltage pulses".) As you read above, the Cable Cooker delivers a high-voltage, high-current steady-state signal, in addition to the wide-frequency swept square wave. There is no low voltage option, and the signal does not pulse....it's steady-state. The output signal is vastly different in content from Jim Hagerman's fine products and Nordost's VIDAR and other dealer-operated cable conditioning device.
And edorr....since you indicate you are a Cable Cooker owner, please try one of your Shunyata Alpha's on the unit. You will probably enjoy the results. I would recommend at least 4 days of conditioning (presuming the cable is new), plus perhaps another 24 hours of conditioning after you've listened for a few days. Your ears will tell you what's best.
There are NO high-end cable burn-in devices that I am aware of that have enough current output to properly burn-in power cables. And yes, I have tried them all. We have considered building a device specifically for PCs but the fan seems to do the trick.
While Caelin is stating his personal/professional experience (with which I shall not argue), his implication / admonition regarding current output is simply not correct. Since version 2.0, the audiodharma Cable Cooker has ALWAYS outputted a steady-state signal consisting of 1.9 Amperes of current (on its high-level circuit), and this level remains so today with version 3.5, six generations down the road. This high-level output is equivalent to 22 watts of power, certainly much higher than the "watt of power or less" that Caelin states in his post about "these devices". We achieve an equivalent one watt of power on the "low-level" interconnect circuit, however, quite sufficient for runs of up to 2400 feet of line-level cabling (as proven a couple of years ago in a California recording studio). Additionally, a few manufacturers regularly pre-condition long spools of heavy gauge speaker cable, anywhere from 250 feet to 500 feet long.
Further, countless numbers of cable manufacturers all over the world have been successfully using the unit to condition not just one power cable, but daisy-chaining multiples, sometimes two dozen simultaneously. Many of them are very well known, and advertise both online and in various audiophile print magazines. As most of the sales over 14 years have been to individuals, most customers usually order multiple 15-amp "extension" adaptors for just this purpose. I also offer 20-amp IEC adaptors and extension adaptors for daisy-chaining 20-amp cables.
Of interest: depending on the gauge of the conductors and amount(s) of dielectric materials, the conditioning times usually vary from 4 days (for 14-gauge) to 6 days (10-gauge). Heavier gauge geometries sometimes take a bit longer. And per the FAQ page, I always recommend Cooking-and-listening tests to determine the most effective conditioning time. But simply put, a fan is simply no match for the Cooker's steady-state output signal, especially from a qualitative and musical perspective.
Caelin owns one of 5 original prototype Cable Cookers, built approximately 14 years ago....he was one of the professionals I consulted during the initial design and test period, and in fact helped contribute to the idea of using custom adaptors for power cable conditioning, for which I am quite thankful. But that original prototype was superceded by versions 2.0 through version 3.5....fully six generations of circuitry now beyond the original. I am not aware if he has tested or used any other version other than the original prototype.
There is no question that Shunyata makes very fine products, and their longevity and sales around the world prove that very point. But on the subject of power cable conditioning and the Cable Cooker's overall capability, Caelin's comments are incorrect.
Thank you all for taking the time to read my response.
alan m. kafton