It depends on amp to amp, however with mine I find that a level beyond 92 adds a little flattening of the sound stage and compresses the dynamics, this is due to overloading the single ended inputs on the amp. Its worth experimenting with to find the optimum level. MSB recommend running the Select's volume at 92 if linked to an external pre-amp or in our case an integrated amplifier.
Re the inputs, I use AES 110ohm I find it more satisfying than USB. I also us the 75ohm BNC word clock sync with my source so the Source's clock is then slaved to the DAC's Femto clock.
Simon, I appreciate the input, so to speak.
The Select runs into my balanced
Mjölnir Carbon CC. So there shouldn't be any issue with overloading single-ended inputs for me.
I was less than thrilled with AES on the Totaldac. I mean, it was okay, but it colored my viewpoint, and so when choosing input options on my Select, I decided to forego it. Of course, part of my problem might be the somewhat convoluted path my data takes through the d-1 server to get to the DAC. My plan all along was to rely primarily the network renderer with the Select, and I am sure I will either get there on Roon, or continue with the LANRover, which has been very satisfying so far, or return to UPnP. No need to worry about another clock in either case for me. I accepted MSB's assertions around external clocks. And again, I am a network guy, so i never went down that path.
I looked for the MSB recommendation on the 92 level, but could not find it. Can you point me? Anyway, I will definitely try that. The Mjölnir has plenty of gain, so if 92 is better, though 100 is "normal" per the manual, then it is what it is!
negura, I agree that the MSB preamp seems quite good. Ironically, it was one of the reasons I initially chose to put MSB in my "think about later" list—didn't want or need a real [though passive] preamp in my DAC. I have a very good passive preamp in my speaker system, the balanced LDR by Tortuga, but i did not believe I needed one in my headphone rig. Still, it's a bonus with the Select, I guess.So, it's just a matter of finding the right balance in the respective volume controls. I have no desire to replace the Mjölnir Carbon CC as the power for my Stax. It's a superb amp.