I have an ADI Pro SE 2/4 and I'm loving it so far!

I have multiple headphones and IEMs that I use with my ADI. I love the ability to save setups and map them to the front buttons, it makes switching between headphones in a volume-matched manner so easy! RME is unmatched when it comes to quality of life features IMO.

One thing that I miss from my Qudelix 5K is that I can input the impedance and sensitivity of my headphones and the Qudelix will show me the current volume as well as the max volume. It will also display the millivolts being pushed into the headphones as well which is so cool to know.

Currently when using the RME ADI, it's hard to remember what the volume number means for a given headphone. When using headphone 1, I need to remember that -31 on the post-FX dBu meter is 75 dB from the headphones. This translates to -50 dBr on the volume knob. For headphones 2, it's -34 on the post-FX dBu meter for 75 dB or -53 on the volume knob, etc.

It's hard to remember these arbitrary numbers for every headphone/IEM that I have. It would be really cool if EQ profiles had a sensitivity and resistance setting that the ADI could use to display real volume levels on the volume meters.

This would be such a cool quality of life feature and IMO would be a big differentiating factor when making a purchasing decision. Now that A/B testing is more popular than ever in the community, this feature could make the RME ADI devices the go-to choice for people looking to do easy volume-matched A/B testing of their headphones/IEMs.