Same situation over here. Had no time, ordered two cables from WBC a month ago. This one and another one based on Mogami 2964 with different, shorter (and more beautiful) Amphenols. Put the note on my note board for a good laugh when friends come visiting.
But seriously, you bought the wrong cable. The Mogami is the better cable, and I can easily proove that. I tested a bunch of RCA cables to check the change in noise (leakage current) when connecting two units running on SMPS by unbalanced cables. The lower the resistance of the shield/ground connection in the cable, the lower the noise. Technically the leakage current induces a voltage over the shield resistance. Imagine that to be exactly 0 Ohms - no voltage anymore, no noise.
So how low do these cables go? As we are talking quality material (Canare/Mogami) there are data sheets with detailed specs available. The StarQuad's shield is given with 0.03 Ohms per meter. But the shield is not used here. Instead two inner conductors, which have 0.098 Ohms each result in 0.049 Ohms per meter.
The Mogami has a double shield and reaches a super-low 0.012 Ohms per meter. And that was exactly what my measurements showed, the PS noise was 10 to 20 dB lower than all other RCA cables I had for testing, the noise nearly vanishing in the noise floor of the FFT diagram.
As the StarQuad effect is completely bollocks on a short unbalanced cable, and also the one sided connection doesn't bring any advantage on such lengths, I resoldered the Canare, connected the second inner pair to shield and connected shield on the missing connector. That brought the Canare much closer to the Mogami, but still the 2964 showed better results.
Please note this is not about Canare and Mogami, it is about choosing the correct cable type for an application. I am pretty sure Canare also makes a cable that is similar to the 2964. And the 2964 advantages are easy to find in its spec sheet:
- only 57 pF capacitance per meter (the StarQuad is a whopping 185 pF)
- 75 Ohms impedance, means it is very controlled and also a perfect SPDIF cable. The StarQuad does not have any 'impedance' at 10 MHz, it is strictly an analog cable.
The Mogami 2964 is an astonishingly thin and flexible cable. Audiophiles will not like it for that reason alone.
Disclaimer: I don't sell these cables, nor have any affiliation with either company.