Quad Cortex Mini

that was my ground noise and if I didn't have an xlr cable connected that's what I would get. Recording analog gave me no issues with xlr connected. I was just asking the OP to try but didn't get a response so I guess I'll never know.
I stand corrected - I heard that very same noise last night. However, I only hear it while the QC is booting up. Once the boot cycle is complete, and the QC starts making output, the noise goes away. No idea what that means. The weird thing is, I did have XLRs (outs 1/2) connected to grounded monitors at the time and I heard the noise on outputs 3/4. (The QC and monitors may be grounded differently than the power amp on the 3/4 outs. Not an issue once up and running, so not really worth "troubleshooting", i.e. no trouble...)
 
I stand corrected - I heard that very same noise last night. However, I only hear it while the QC is booting up. Once the boot cycle is complete, and the QC starts making output, the noise goes away. No idea what that means. The weird thing is, I did have XLRs (outs 1/2) connected to grounded monitors at the time and I heard the noise on outputs 3/4. (The QC and monitors may be grounded differently than the power amp on the 3/4 outs. Not an issue once up and running, so not really worth "troubleshooting", i.e. no trouble...)
I wasn't really asking you to check. :)
However, if you use the device in a standalone situation with just headphones and guitar connected (with the standard power supply) is when I experienced it, If I would touch the strings or pickup on my guitar, I would ground it. (or connect an xlr to my soundcard) It's a moot point really. I expect the same to happen when the Mini arrives and that's fine....but if it's generally noisy with a proper ground, it won't be staying long.
 
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