Perhaps the wrong thread to mention it, but I'm currently running-in a 2Qute. It arrived Christmas Eve and has clocked up about 250 playing hours so far (mostly unattended I might add) and I swear the thing is still running in! It's been quite a fraught and frustrating rollercoaster experience and along with numerous tweaks to the playback system, I think I'm getting somewhere. Perhaps not quite there yet, it was sounding incredibly cavernous and detailed last night but perhaps lacking a bit of 'flesh on the bone', right now it's sounding spot on and lovely.
Tony, I know it sounds like a fundamental consideration, but run-in is taking an age with my DAC, it might be similar with DAVE.
Until a week or so ago, I'd just substituted the DAC in my system and let things run their course whilst the rest of the system remained stable. Then ran out of patience, and snapped! I re-evaluated a lot of things in my system, for anyone interested, these are things that made a positive difference:
1. The standard Naim mains cable on the SN2 was faulty in some way. Well, it didn't sound as good as another Naim cable I tried, so it's gone and replaced with the better sounding one.
2. The Tuner input sounded fractionally better than the CD input, so I'm now using that input
3. I have no other sources hooked up the SN2. In addition to the normal mains earth (in the IEC cable) that provides chassis earth, I have a separate earth wire from a mains earth connection that provides the signal earth reference. This used to be connected to signal ground at the SN2, it's now connected to the earth terminal on the back of the 2Quite instead. This made quite a substantial difference.
4. I drive the 2Qute using Audirvana on a mac-mini. In the Audirvana system settings, I've changed from Integer mode 1 to Integer mode 2
5. I've set Audirvana to perform 'power of 2' upsampling, but limited it to a max upsampling of 192Khz and 24bit. This and item 3 were the biggest improvements of all the tweaks
6. Not to forget: Run-in, Run-in, Run-in. Lots of it!