The theory is that copper is a shielding agent, against RFI.
The copper chassis are supposed to reject noise better than non-copper chassis HU's.
Personally, I think it's somewhat gimmicky, since HU's have a billion and a half wires coming from them, all of which can be little RFI antennas...
At least gimmicky considering the huge premium the HU companies are charging for this technology, without any numbers behind the claimed benefits...
As far as the copper chassis on the amps, I don't know, but I suspect with such an esoteric amp, that might be the same theory. [img]graemlins/thumb.gif[/img]
The actual heatsink is copper also, right?
Does that dissipate heat as well as lossy aluminum?
Because I really doubt that with such a high-end amp, that efficiency would be tops on the list...
In fact, I'd guess it to be a pure class A?