• The RCA socket is mounted on a nylon plate in the Jones plug aperture, the C7 socket I’m not sure, he did say it was all fully reversible and gave me a bag of all the old stuff he pulled out of them. I reckon having this work done wouldn’t harm the value but I don’t know. They’re certainly not leaving my possession until I’m all nice and dead.

    Here’s the work and the invoice.

  • That all looks very neat, and reversible. I'm going to stick with all the old connector types because I'm a big nerd. I was worried about how they'd fit an earth but the guy emailed me today and said it's best with these to just let them earth through the connectors to the pre-amp, which should have a proper earth. Not sure what pre-amp I'm going to run yet though - I want to be able to stream via Wi-Fi or Bluetooth from the laptop.

  • Nice one, yeah this guy sort of said stop being a baby about getting electrocuted, it doesn’t really need an earth. What you say about earthing the case via the RCAs makes sense in a ‘you don’t want a seatbelt, you’re better off being thrown clear’ kind of way.

    I use a Pro-ject Pre-Box DS2 digital. It has phono, analogue, Bluetooth and all the other digital ins, I use an Airport Express for Wi-Fi streaming.

  • said it's best with these to just let them earth through the connectors to the pre-amp, which should have a proper earth

    stop being a baby about getting electrocuted

    There are two different things being conflated here. Circuit protective earthing is there to make sure the fuse blows/breaker opens if mains voltage comes into contact with the metal enclosure. Getting this wrong can get you killed. Signal grounding is there to provide a stable reference and to dump induced voltage in a low impedance way so that it doesn't get amplified. Getting this wrong will get you ground-loop hum and be very annoying, but it won't kill you.

    Both of these are bigger subjects than we have time to go into here, but the TL;DR is that you should never compromise circuit protection to solve signal ground issues.

About

Avatar for Sparky @Sparky started