auxinput- I’ve been through at least 100+ cables designs in the past 20+ years. Grover experimented with all copper, all silver and various mixes until about 5 years ago when he settled on using both. However, the + and - in ICs and ground with A/Cs have different wire configurations based on empirical testing. Also, the mixture of copper to silver is heavily weighted in favor of copper. 15 years ago, he made an all copper woofer cable for me that sounded better with his jumper used full range than the bi-wire I previously had. I now have his speaker cable which has about 90% copper/10% silver. Same with the ICs and ACs, a touch of silver. We found that the silver adds openness and highs to the sound that a 100% copper cable does not. We have brought his cables to audio shows and used them in dozens of high end systems which the dealers loved (and permitted him to use) over than other cables they were using.
Grover has a philosophy that he will not overcharge for this work. Based on comparison with other high end cables, he vastly undercharges.
As to the IC connectors, they are low mass, 20mil silver on pure copper billeted RCAs, superior in quality to high end plastic Neutrik with their limited connection area and cheap feel and better sounding than WBT with their heavy mass for ICs. As to A/C connectors, he will use Furutechs over Oyaide of your choice or his own choice which he believes sound better at lower cost.
