Best Amp and Pre-amp with silver transformers and silver wiring

Recently had a chance to listen to Audio Technica AT1000T with Ikeda Kai cartridge in my set up. Was blown away!! 
I read that it has silver transformers.
Would like to hear what was the best Amp and Pre-amp with silver transformers that you heard and compared with what. Also, please list other components in the system.

Thanks!!