I started a new build a coupe of days ago.
It's a dual mono configuration with 2x nc400 and 2x SMPS600 in one alu-case.
I've just completed building the case, and i am about to install the connectors.
The NC400 modules are shipping at this moment.
I have some questions about earth/ground in the installation.
I am going to use XLRs for inputs, but i just have RCA in my pre-amp.
There is a mic-cable RCA- XLR that should work. Hypex recommend to always use XLR for better sound quality.
In the manual is says to add a cap if you are going to earth the mains, as i going to do.
The question is: Are you supposed to ad this in this installation with mains grounded?
http://www.hypex.nl/docs/NC400_datasheet.pdf
Page 13, figure 3.
I'm also wondering: the NC400s will have grounded mains, the pre-amps does not have grounded mains. But the computer of course have grounded mains. Will i get a ground-loop and bad sound? I also use a USB-DAC between.
Thankful for some help.
Regards
It's a dual mono configuration with 2x nc400 and 2x SMPS600 in one alu-case.
I've just completed building the case, and i am about to install the connectors.
The NC400 modules are shipping at this moment.
I have some questions about earth/ground in the installation.
I am going to use XLRs for inputs, but i just have RCA in my pre-amp.
There is a mic-cable RCA- XLR that should work. Hypex recommend to always use XLR for better sound quality.
In the manual is says to add a cap if you are going to earth the mains, as i going to do.
The question is: Are you supposed to ad this in this installation with mains grounded?
http://www.hypex.nl/docs/NC400_datasheet.pdf
Page 13, figure 3.
I'm also wondering: the NC400s will have grounded mains, the pre-amps does not have grounded mains. But the computer of course have grounded mains. Will i get a ground-loop and bad sound? I also use a USB-DAC between.
Thankful for some help.
Regards
hum
Cannot speak to the first questions, but if one of your amplifiers is grounded and pre-amps or sources aren't you could definitely have some hum. Could use a cheater plug that has the ground removed, or simply connect them all to the same high quality RFI/EFI filtering power strip (which will probably be grounded). I'm interested in your earlier questions as I'm planning an NC400 or Anaview build soon myself.
Cannot speak to the first questions, but if one of your amplifiers is grounded and pre-amps or sources aren't you could definitely have some hum. Could use a cheater plug that has the ground removed, or simply connect them all to the same high quality RFI/EFI filtering power strip (which will probably be grounded). I'm interested in your earlier questions as I'm planning an NC400 or Anaview build soon myself.
You might want to read through the Hypex nCore thread in the commercial section.
Just to be precise, Hypex recommends balanced connections. XLR just happens to be the most common connector for balanced connections.
Yes - if your mains isn't grounded, you don't need the cap (and resistor!). But grounding mains to the chassis is a good idea.
Maybe. The nc400 has a proper differential balanced input, so it won't be affected by ground loops, but your unbalanced preamp will now be connected to mains ground through two paths - through the RCA connector to the nc400's, and through the computer-DAC-preamp chain. Thus the nc400's aren't a factor here - ground loops depend on your DAC and pre, not the hypex stuff.
On the power connection? That could prove lethal...
How will RFI filtering help with ground loops/hum?
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