I just measured my ddrc-24 and I am not sure if I did it right. here is what I did:
1. Export 1k sine wave from REW at -10dbfs rms
2. In Audacity normalize to -0.1dbfs peak
3. send out full signal to zoom h6 set gain to get -15dbfs signal
4. view in REW RTA spectrum
when doing it this way the MiniDSP will not show a clean signal until I lower the signal coming out of it to -6dbfs exactly.
I plugged in my sankrit 6th DAC to test and it could output the full signal up to -0.1dbfs with no issue
Will post a screengrab later.
Why go through all that with exporting a sine wave? Just send a 0 dBFS sine directly from REW.
Do you have any boost applied? I have seen no issues with 0 dBFS test signals to the DDRC. If you need to attenuate to get a clean signal that implies you are applying boost.
EDIT: Or it be could be that you are summing L + R in the mixer which will also require 6 dB of attenuation to get a clean signal.
Michael
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