@robert1976 I am in a similar boat. My system is also very enjoyable but, tends to get bright and harsh with certain (rock) recordings. I don't listen at higher volumes so that is not an issue. I too am not unhappy, just curious if I can chop off that bright top end with certain recordings.
I was thinking about taking a slightly different approach. Purchase a less expensive Dac that would only be used for poor recordings. Something that tones down a hot top end. Dacs I am considering are a used PS Audio direct stream or Lampizator Baltic 3. I will also look at used Audio Note Dacs.
So what I am looking at is an Aurender 200 feeding a Berkeley Alpha USB then AES to a Berkeley Reference 3 and SPIDF to the new Dac. Both DACs will be connected to my preamp.
I did compare the Berkeley to the MSB Premier and preferred the Berkeley. One caveat is the new Dac must have balanced output.
Are there any other DACs I should be considering that will only be used for about 10% of the music I will be listening to?