I've started work on building a Dynamid this month and I've now ordered two Dynalo PCBs from AMB which are on their way at the moment. I'll be driving this from a DAC1 so my inputs are fully balanced and I've had my 650s recabled for balanced drive so everything should be alright on the outside of the amp.
My question concerns the grounding of the PCBs at the points I've highlighted here. I'll be driving this from a Sigma22 which is in a separate enclosure from the Dynalo boards.
Red Point
This should connect directly back to ground on the Sigma22, is that correct?
Pink Points & Blue Points
I have no idea where these should ground to. Surely not the chassis since that won't be grounded as the PSU is seperate. Do I need to connect them at all? If so then are there already PCB traces going back to ground on J5 (red) or will I need to wire these to it?
Edit: Having read some more I suspect that both the output and input terminals' ground should connect to ground on the XLR inputs, can someone confirm that?
These are probably rookie questions so thanks for your patience. I'm more of a solder monkey than an EE, it's been several years since I took any electronics theory.
Edited by Bizzel - 9/9/10 at 10:52am
