RMAA Tests: (Welcome to add others!)

[Rja4000]

Neumann MT48 (I bought another -this one's screen is fine) - It requires a certain type of USB-C power supply or USB-C power bank to power it as a head's up ... not every generic adaptor/powerbank will work. The fan doesn't come on too often - I have it set on Medium, but it isn't exactly silent. The software can be a bit confusing compared to the MOTU's. If I plug in a electric guitar and turn the volume way down and turn up the gain on this ... and then raise the levels of the silence 30db or so - the noise is definitely lower on this than the MOTU DI input - though admittedly, that's probably not going to be an issue for any real use.

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Thanks !

Not really impressive, but not broken by any meaning.
The IMD sweep (that you posted twice ?) looks strange.

What would be very interesting is to see a level sweep (THD+N or IMD, it doesn't matter)...

 

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RME ADI-2/4 and RME ADI-2 Pro FS R BE

 

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RME ADI-2 Pro FS R BE / MOTU 828 / Neumann MT-48

 

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RME UFX III vs UCX II (Using RME ADI-2 Pro FS R BE as DAC at 19dBu to specifically compare the inputs of these interfaces)

 

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Comparing multiple interfaces using the same RME ADI-2 Pro FS R BE. I used the closest matching output from the ADI-2 to match each interface, as each interface has different maximum inputs: for example the Motu MK5 can handle 24dBu inputs unlike the other interfaces which max out at 19dBu for the RME UCX II and UFX III and 21dBu for the 828.