Differing volumes over toslink across streamers

Posted by: kishekar on 29 June 2018

I Just received an Auralic Aries streamer, upgrading from a Bluesound Node 2.  Both devices are set to defeat volume control, sending data over toslink to the 2Qute and then the Supernait 2. 

To my great surprise, the volume from the Node 2 is significantly lower – and I am wondering: how could that be? 

I was under the impression that a streamer, w/o any volume control, would send identical 1s and 0s to the DAC (the 2Qute certainly isn’t making any volume decisions)... but clearly that is not the case.  Has anyone else experienced this, or at least know what is going on?

I’m now using USB, so this is more out of intellectual curiosity.  If anyone interested in early perception of sonic differences, also happy to provide.

Posted on: 29 June 2018 by DC71

Hi,

Have you ever tried/used the variable volume control and max volume limiter on your node2? I just tested this and found that if you set a max volume lower than 0db while in variable mode, then switched to fixed volume output the max volume cap is still observed even in fixed mode output.

Try switching to variable output, then reset the max volume slider to maximum 0db before switching back to fixed output mode. This gives me the same toslink volume output from the node2 as I get from my sms-200 usb output though my chord Qutest.

I'd be very interested in your impressions of the sq difference between node2 and Aries, as I'm looking at the Auralic as a possible upgrade from Node2 and my sotm sms200. So far the sotm is giving me slightly better sound than node2 but I don't like having to manually switch modes on the sms200 when my wife wants to play Spotify (I use tidal and local streaming controlled by Linn kazoo).

Posted on: 30 June 2018 by Huge

Is either one configured to upscale the data?

Posted on: 01 July 2018 by kishekar

Tried futzing with variable output mode on the Node 2 and resetting to max 0db, but no dice, was already at max.  Anyway, ended up getting decently close on figuring out comparative levels across two sources to compare sounds going back and forth.  

Impressions of the Auralic Aries via USB after a decent amount of weekend time (Aries was acquired used, so assume already decently broken in).  I should admit upfront that I had a bias until recently that most devices outputting & receiving 1s and 0s should do an equivalent job, because "hey, if my HDD on a cheap PC can manage to copy a file to another HDD and not introduce corruption over a $5 cable, how hard can this be?."  Lesson learned:

  • Out of the gate: greater overall dynamics
  • Wider and more defined soundstage – instruments all feel like they got yanked a little bit left and right, in some cases almost to the outside of speaker.  And those voices/instruments between are more defined in space.
  • More detail – mids, and especially highs... more decay + soundstage provides a greater sense of air around the instruments and vocals are much easier to separate (e.g., listened to a decent bit of Dave Rawlings Machine, and Gillian Welch providing backup vocals on these tracks is now oh-so-much-more noticeable and distinct from Dave Rawling's voice.  Startingly so!)
  • On tracks I know quite feel, am noticing new details and more engaged with the rhythms

I guess I'm a bit blown away that a changer in streamer could be this impactful.  I've gone back and forth with the Node 2 all weekend, and at this point its digital out just seems relatively flat and shrouded.  No going back.  Also, I feel a bit silly, but it appears I'v been underutilizing the 2Qute for the past 2 years – I had no idea there was this much incremental magic in it going from Node 2 over Toslink to the Aries over USB.  I've really liked the 2Qute + Supernait 2 combo before, but now I feel like the digital side has taken a step-change leap – very, very fun.