Yes, i know, basically thinking the same as i read the statement that the tester couldn't hear a difference between both. Therefore i wrote "Maybe i should overthink my expectations", more exactly i should have wrote: After thinking about it i'm happy to hear that the 1K RME ADI-2 DAC is fine and also much easier to get here in Germany (especially in condition used) as a Benchmark DAC 3 which only exists new in Europe and seems to be also very rare in condition used in the rest of the world. So in general i agree with you @CaptainFantastic I know that the differences between DACs are quite small compared to differences of headphones. But i don't know if the tester isn't just unable to hear the difference because of his/her personal limitations or if there is a common consensus (probably not because there are no other people who compared them both). ASR i don't know very well, the measurements seems to be well made, but the sound perspective lacks at bit. Talking about DAC chips, the chip in the ADI-2 isn't mentioned in the spec, probably its an FPGA. Basically i'm wondering why there are not may DACs using the ES9038 Pro chip in dual mono mode. The L.K.S. Audio MH-DA004 is one of the few ones i found. Havn't checked the Sabaj D5, it seems to use one ES9038 Pro. I know, its not only about the main chip, the implementation is essential. And i not only judge from looking at the measurements or specs, however i admit that they influences me and help me to create a shortlist.