Wywires Silver to Platinum interconnects. How big an upgrade would that be ?

The weak point of Redgum is the power supply - the amp plays great when the wall current is good and it sounds like crap when it isn't. I have the original RGi120 made in 2001, considered by some best sounding. Perhaps it was designed for different time, not that I would expect top power supply in $1.5k integrated, but still it could've been better. I've had it for seven years and would only upgrade to Gryphon or some Swiss integrated if I wanted to continue with integrated amps, which in fact I don't but might have to.

Got them today, unexpectedly earlier than I thought.
They appear to be fully burnt in but I'll see. This is preliminary because I only listened with Grado RS1 Classic headphones and Burson Soloist headamp. I also made recording directly off the phono stage on Maxell Vertex tape, Nakamichi 682ZX tape deck, and listened thru the Naks headphone amp.
The results of both comparisons were the same. Alex's choice of words "considerably better than Silver" was absolutely correct.
Please understand that the Silver is a really excellent cable but..
The Platinum sounds deeper, fuller, more confident, a touch warmer with better instrument and note separation. More sophisticated while maintaining a kind of soaring elegance to it. Silence is even more silent.
Overall it just sounds significantly nicer and more natural. It feels like a complete design, something was to a degree missing in the Silver that is not in the Platinum. Definitely less distortion and more details.
I'll get back to this next week when I have an opportunity to listen thru speakers.

Alex of WyWires has said that the cables should settle for about 30 hours after not being used for some time, so I'll post in a few weeks.

Alex has my Audio Karma cable cooker.
All wires need a bit of settling.
Considerably Better, should be for double the price of the Silver Series $800
Platinum $1600 Retail.
All nice cables!!!

After 15 hours of play the difference between Silver and Platinum became larger. So if you can find it used go for Platinum, you are very unlikely to regret it. I can see that some dealer sells new it here for $1150, full retail is $1800. Between WyWires Platinum and Tchernov Reference MK II...close, very close in my system, and I only have analog sources. I prefer WyWires with acoustic music, it is a little more sophisticated, and it is a nearly a draw with electric with Tchernov having a very slight edge because it is a touch more powerful. I could live happily with either and I will - I need them both. Silver goes to ebay.