Relays seem like a necessary evil on power-amp outputs if you want to prevent on/off thumps and protect the speakers from destructive DC off-set. Right? Or not right?
The right type to use, in my mind, would seem to be normally-open-contacts type. Then they would start open and only close when the time-constant is through and no DC is sensed.
Then the quality of the contact's metal and plating seems to be essential. I have never seen any article reviewing relays brands or types, which I think would be more important than resistors, capacitors, diodes or even cables.
Does that metal & plating affect sound quality? Which is best?
Most do not specify what they use, and many of them look dangerously like nickel plated metal, probably copper.
Silver, gold-plate and silver cadmium-oxide are also popular on those that do specify the contacts. Which would be best or what sould we look for?
Carlos
The right type to use, in my mind, would seem to be normally-open-contacts type. Then they would start open and only close when the time-constant is through and no DC is sensed.
Then the quality of the contact's metal and plating seems to be essential. I have never seen any article reviewing relays brands or types, which I think would be more important than resistors, capacitors, diodes or even cables.
Does that metal & plating affect sound quality? Which is best?
Most do not specify what they use, and many of them look dangerously like nickel plated metal, probably copper.
Silver, gold-plate and silver cadmium-oxide are also popular on those that do specify the contacts. Which would be best or what sould we look for?
Carlos