I stumbled into this topic more by accident lately as I was looking for a cable with very low capitance
for a Goldring 920 IEC that's in my Dual 1229.
The combination doesn't look like much, but with a good phonopre and if you get the capitance dialled in perfectly, the Goldring really comes alive and the deck delivers a performance most surely wouldn't expect in the first place.
So I took the minimal setting from the Phono Box RS, added an average amount of capitance typical for a tonearm inner wire + used the perfect length of a low capitance sommer cable to get to the capitance I was aiming for spot on more or less.
That made a remarkable difference to the 1,5 meters of standardcable that had been in the Dual before.
As I got curious now and the Sommer appeared quite well made, I looked around if I could find something to try with an MC system, as if I hear any differences, it's much easier for me to tell apart between the MC and the phono-pre than from the CD player for instance.
I'm not shopping for ready made cables and mostly try to get away with 20-30 € per meter maximum, found some epilogue from sommer (don't get put off by the prices of the ready-made offers), looking the usual places you can find some ex-studio use often balanced configured and come out at the prices/m I mentioned.
I did that more or less just for fun but the improvement from my previous Van Damme cable really surprised me.
Replaced my Linn black between my DAC and the Pre & also here the sound opened up in a great way.
In my opinion the Linn black is quite a bit overrated, I was nearly a bit angry how much potential I had been throwin away all the years w/o realising it.
Trying the same Sommer between my Pre and PWR amp then, replacing a Klotz5000 there, the sound suddenly became really shut-in. So to me the Klotz is perfect between my pre & pwr, as well as a really good alrounder.
If given only 1 choice, the Klotz everywhere would do the least wrong in my book.
You can do better between MC & phonopre though, the differences there are not subtle at all imo.
No need to spend much money though and the one I found by coincidence is just 1 good brand, there is many employing great technology and a very good quality.
The surprise to me was that the delicate signal of an MC can really ask for a different solution than the link to the poweramp.
If you use the same cable in both places, it may well be you have quite a potential in either 1, possibly even both places to gain.
Doesn't have to be expensive at all, price doesn't mean something is better, but the right cable in the right place can make a remarkable difference imo.
Even swapping around different brands you already have at hands can be interesting to find out what kind of cable may suit best in which place in your setup.
(My Pre for example is known for having quite a substancial output, which is why I guess does not get along too well with a cable aimed at fine signals)
The Van Damme while ~ok-ish can easily be improved upon in my setup & is hence out,
the worst by far was my Linn black, though,,,that was a huge suprise as I had considered them as solidly good solutions up to now.