A google image search for inverse RIAA finds this: https://www.kempelektroniksshop.nl/blue-horizon-inverse-riaa-filter.html ...

WOW ! $200 and still no attenuator in them

Check their other products----> https://www.kempelektroniksshop.nl/analog-cables.html

 

Years ago we did a test in the college electronics lab of the ordinary #14 brown plastic insulated zip cord. If the speaker could reproduce a frequency of two MEGAHERTZ (2,000,000Hz) and IF the amplifier could deliver it, there would be some phase shift distortion. But since not even CDs can deliver two Megahertz (2,000,000Hz) audio, it should not be a problem for most folks. It evidently depends on the frequency response of one's amplifier and speakers. And how much money one has to waste.
But like the song goes: "Would you walk away from a fool and his money." It seems some would not.
"It ain't me, It ain't me, I ain't no fortunate one." CCR, Fortunate Son.

 

"SR even built a new Tesla Coil to handle the excess heat generated during long conditioning sessions."

My BS meter just exploded. Fortunately, a new one will cost less than $32,242.

https://www.kempelektroniksshop.nl/...istic-research-srx-series-speaker-cables.html

ak

 

My point was that the cable type was shown to have no detectable effect at audio frequencies. At radio frequencies it does have an effect.

 

Inverse RIAA must attenuate line-level signals or they'll overload the phono preamp, particularly for moving-coil inputs. But for that price, it's disappointing that they don't include specs for how well it matches the RIAA curve, input and output impedances, or attenuation at some reference frequency.

 

My point

My BS meter comment was referring to the linked speaker cable product, not your experiments.

ak

 

This is the meter, works well...