Guys

Building my own speakers at the mo, I originally had the crossovers in Aluminium enclosures but I've been told this is not good, because it's metallic.

However Aluminium is an alloy and I've been advised to keep the crossovers in the Aluminium cases as it will help re RFI, I've also been advised to star ground the case by running a wire from the case to the -ve speaker input.

Any advice welcome