

Also, if 90% of interface manufacturers give best-case specs, you kind of have to go along. I'm not saying at all that RME is trying to be deceptive, just that a lot of times specs are "shorthand" because most consumers wouldn't know what to do with more technical info. The only real way to determine crosstalk is to see a graph that shows the amount of crosstalk across all frequencies for a variety of input and output levels.

I've tested interfaces that specify X amount of crosstalk, and they meet that spec but only over a certain range of frequencies or at certain mic preamp levels. It depends whether that's across the entire frequency range, at 1 kHz, etc. RME's specs for the analogue outs on the Babyface claim the same amount of channel separation as their other USB/Firewire interfaces, i.e. With a hot click level, you could definitely hear it in the other channel if the levels were turned up.probably even if the crosstalk was -65 or maybe even -70 dB. You can hear tape hiss easily at -60 dB and -55 dB is about the S/N of AM radio stations. Are you SURE it's not audio crosstalk within the interface or some other element of your system outside of SONAR? As I mentioned previously, crosstalk specs of -55 to -60 dB are not uncommon. There's definitely no interchannel leakage within SONAR.

If the right track had anything, it would have been normalized up to something audible.still nothing. Then I bounced the click track to a stereo track based on the master bus settings, set the left channel gain to minus infinity, and normalized the track to 100%. So then I panned the master bus output full right to hear only the right channel, put on headphones, and turned the interface headphone level up full blast. I set the master bus meter range to 90 dB and didn't see anything.
