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!!
kanchi647
points noted on questionable benefits of pursuing silver over copper or other metals for wire and transformers as audio nirvana - implementation is always the key to any design and selection of parts/materials

but op asked the question, so he has gotten some answers
Art Audio Harmony Silver vs base Art Audio Diavolo. Tremendous amps and are competitive with the best 300Bs in the world.  

atmasphere
... If the copper is properly treated so that is does not corrode, its a better conductor than silver ...
In what way is copper the "better conductor?" Comparing apples to apples, doesn't silver have better conductivity? Wouldn't that be true if you were comparing a "properly treated" silver conductor to a properly treated copper conductor?