Unplated copper spades/banana

Copper needs to be cleaned every 6 months or tarnishes  that’s why they are gold or rhodium plated 

I use COPPER spades and use DeoxIt (2 formulas are available, one for copper, and one for gold) and Stabilant 22 clean/condition them  once or twice each year. 

No big deal... 

On the positive side, taking the time to clean the connections gets me back 'into the details' of my system.  I use this time to check my TT parameters, outlet connections, speaker placement, etc.  

I once owned a set of inexpensive, platted speaker cables and learned a lesson -  avoid plating where reasonable to do so.

I use Viborg copper spades and I can hear absolutely no differences from the previous connectors.  None.  Zero.  But, I do like their look.

As I read all these posts, I can't help but wonder what the systems of the people posting are like.  If your system cost less than $10k, I'd be surprised if it would reveal differences in plating type or plated versus unplated.

I also wonder about the listening skills of those posting.  Do they have have a playlist of "system test" tracks that collectively reveal the major aspects of sound quality?  Do they have a disciplined approach to listening?

I'd like to hear from someone with a $250k+ system who is a highly skilled listener.

For what it’s worth, coming from Monoprice 12g wire with Nakamichi bananas, I went with the Viborg pure copper banana plugs on Furutech FS-A36 12g speaker cable. I tried one speaker with the Nakamichi & the other with the Viborg both treated with Stabilant & the Viborg & the OCC Copper made a HUGE difference. And I thought my system sounded good before the change.