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Can you help with the spec?
It quotes Dynamic Range in two places:
20-22kHz bandwidth: 112dB
20-22kHz bandwidth and A weighting filter: 115dB
And then further down:
20-22kHz bandwidth, 0dBFS = +20dBu (AES17 filter): 117dB
20-22kHz bandwidth, 0dBFS = +20dBu (A-weighted): 119dB
Not sure what the difference is? Is it the Dynamic Range at the headphone output and then the Dynamic Range at the line outputs?
Then, the maximum output, 5.1V at the line outputs seems quite hot to me, seems like that will clip the input on standard consumer amplifiers quite quickly? I thought 2V was the standard?
Volume control: is that analog or digital attenuation?
I think I can help with that. The +20dBFS measurements are from the m905.
That was supposed to be removed from the source spreadsheet that went in to the manual.
My fault for not proofreading that better!
The dynamic range is the same for headphone and line outputs and is 112dB, 115dB-A
Updated version of the user manual is coming soon.
As for output level on the line outs. Setting the m9XX volume at "90" is unity gain and provides a 2V output level for 0dBFS.