Question for Atma-sphere, will expensive power cables improve your amplifiers?

edit: what he said ^ just in different words: 

@immatthewj

Why is solid core wire illegal in a power cord?

It is quite possible (and rather likely) that after multiple handling and installations it could get bent back and forth enough times for one of the solid copper "rods" to break, which then would be a fire hazard. The same copper wires in your walls of course are static and are not flexed back and forth after initial installation.

Manufacturer’s really hate getting into the power cord discussions.

Occasionally some consumers who argue against the benefits of changing out the power cord supplied with the amplifier like to quote Nelson Pass’ or Roger Russell’s comments from decades ago.

This comment from a recent Pass Labs amplifier manual is typically the most a manufacturer will state publicly regarding after market power cords: I think we can read between the lines

Pass Laboratories provides a power supply cord that meets all legislated requirements for the market in which the product was originally sold. If you choose to substitute an after-market product we urge you to choose one that is fully safety rated by the necessary local authority.

OP suggested Gryphon, here is what one of their manual states:

AC Power Cords:

Use only a dedicated AC power cord. Do NOT use loudspeaker cable or other wire not expressly designed to carry high current. Improper cable or cables of insufficient gauge will generate heat and the insulation may melt with disastrous results. Do not run, thin, coiled, extension cords. AC cords DO have an audible effect on sound quality, but experiments should be carried out with due consideration to safety.

And:

Choice of Cables:

Because your Antileon is a high-resolution Gryphon audio device, it will immediately reveal the characteristics and possible limitations of the other components in your system, as well as those of the interconnects and loudspeaker cables used to connect your system. Wiring should never be utilized as "equalizers" to correct errors elsewhere in the system. Instead, any error should be corrected at the source, so that interconnects and loudspeaker cables can be selected solely on the basis of sonic neutrality. For this reason, we employ Gryphon’s own range of interconnects and cables in every stage of the design of every Gryphon product. A very important Gryphon topology keypoint has always been the abillity to obtain near perfact phase response - the foundation for a realistic and stable soundstage - this requires wide bandwidth.

Cable warning: In recent years a number of cables have emerged on the marked that are manufactures with no or little consideration to the electronics that they are connecting, unfortunately there are no standards and some ”exotic” cables can create unstable working conditions, these cables are often coaxial speaker cables that may work fine with Tube amplifiers or other bandwidth limited constructions.

Several years ago, on Audio Asylum forum a guy built a DIY power cord using CAT5 twisted 4 pair data cable. WOW!. 120Vac. Available short circuit fault current at the wall outlet for a 20 amp circuit could easily be in the hundreds of amps before the breaker will trip.

I have read on audio forums where DIY power cables where built using Speaker cable.

@jea48 

This doesn't surprise me, but one may conclude those with the budget of a Gryphon would be a little more inclined to not "cheap out" and DIY? But it is the manual for a reason!