ProTools HD Omni and Rupert Shelford Channel not getting enough gain

[Darryl Ramm]

But this is triggering a memory for me about Omnis... but maybe TVPostSounds old posts. I don't have one in front of me and have not used one in a while. This needs to be carefully measured like TVPostSound is suggesting. Measure that sine wave with a quality RMS multimeter, measuring across the differential pair (not to signal ground).

Was this suspected to be a range of bad serial numbers Omni units?

Would help a lot to be absolutely clear what cables and inputs are being used. It's so easy to brain fark and say stick a TRS cable into the front panel DI input (I hate that's not a switchable TRS line input).... or find out you have a bad cable, maybe intermittently bad.

[cristtiah]

Originally Posted by TVPostSound

Dont drive yourself crazy, there IS an issue with the line in on the Omni HD.
Ive brought it up here twice, emailed support no response from Avid.

The line in is shy by 8 to 12 dBs.
Tested with different mic pros and cables.
Then I used an oscillator as proof.

so you are saying all HD Omni has bad line inputs?