DanieleRonchi1989
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- Apr 11, 2025
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Hi everyone,
I’m working on a custom audio build that combines an R2R DAC, an Aleph 1.7 preamp, and a power amplifier inspired by the Dartzeel NHB-108, all inside the same chassis.
Given the mix of digital, analog, and power circuitry, I’m trying to carefully plan the grounding strategy to avoid ground loops and noise. I’ve labeled every GND point in my design and created a PDF diagram showing all connections, supplies, and ground references. Each GND is numbered to make it easier to follow.
What I’m asking:
I’d really appreciate some help figuring out:
• Which GNDs should be connected together?
• Where should the central ground (star ground) be placed?
• Which GNDs (if any) should be isolated (e.g. digital vs analog)?
• How to properly handle speaker return ground in this context?
The PDF diagram is attached to this post.
Any suggestions or guidance would be hugely appreciated!
Thanks!
Daniele
I’m working on a custom audio build that combines an R2R DAC, an Aleph 1.7 preamp, and a power amplifier inspired by the Dartzeel NHB-108, all inside the same chassis.
Given the mix of digital, analog, and power circuitry, I’m trying to carefully plan the grounding strategy to avoid ground loops and noise. I’ve labeled every GND point in my design and created a PDF diagram showing all connections, supplies, and ground references. Each GND is numbered to make it easier to follow.
What I’m asking:
I’d really appreciate some help figuring out:
• Which GNDs should be connected together?
• Where should the central ground (star ground) be placed?
• Which GNDs (if any) should be isolated (e.g. digital vs analog)?
• How to properly handle speaker return ground in this context?
The PDF diagram is attached to this post.
Any suggestions or guidance would be hugely appreciated!
Thanks!
Daniele
