Last year I had a good deal on a Musical Fidelity KW500 integrated amp, this is a two piece kit with a separate PSU and a single chassis that contains a tubed preamp and two power amps. One of the advantages was not having to be tempted trying different interconnects between the preamps and amps - wrong

I was informed by a 'reliable source' that the preamps and amps where not hardwired internally but used a regular RCA interconnect. After this call it took me about 2 minutes to get the top off

and found 0.5m interconnects being used from Nordost - well Kudos to MF for making an effort.
At the same time I was trying out (and subsequently bought) Gregg's superb speaker cables, and had him send me IC's to try out:
I also tried out more expensive IC's from Nordost, along with a number of other IC's that appear on the Audiophool 'A' list - all of these made a big difference. All excellent products from good companies. Then Gregg's IC's arrived - I was shocked, the improvement was so good it was just not funny. I spent the next few weeks trying to convince myself that IC's costing 5 times that of Gregg's had to be better - just like a good Audiphool subscriber has been taught to do

But to no avail, so Gregg's IC's take pride of place in my KW500. Furthermore an off the shelf 0.5m IC is way to long and has to be tied off, Gregg made an 8 inch IC that is a perfect fit and a much neater solution.
Unfortunately I'm not able to share this info with other MF users as the nice people over at A*gon have a problem with sharing good news about certain non-mainstream suppliers, and rejected a similar post. I can only hope that my find is shared on this forum.
NB
Any MF owners that want to know what IC's I tried can do so by pm.