I recently sold some overly expensive gear and have come back to what I enjoy which is listening to music and experimenting with different gear along the way without having to sell a kidney in the process.
The intent of this quick summary is synergy and personal taste and not "This is better than that" Nonsense.
Paired with Cornwall IVs in a treated room:- The BS Node N130 analog out presents a slightly warm tone with less precise imaging but with very realistic sustain/ decay/ reverb especially on live guitar tracks
- The same node USB out to a Topping D70 Velvet brings about a more technically proficient sound that brings vocals more forward in the mix and bass tighter (think typical Class A warm bass vs Class D bass). Initially for a short listen this brings about a Wow that is really different reaction. Playing some jazz guitar tracks the sustain and decay is gone. Instead of a musical sustain that relaxes you... you just hear the note stop.
- The Node via SPDIF coax to the Topping D70v is right in the middle. You get back some of that musicality from the Node N130 analog out but some speed of the outboard DAC.
Collective observations and assumptions of 2 listeners:- The USB to DAC is the most technically advanced solution but in this system the least musical
- The Node N130 has the most relaxed presentation with my Cornwall IV in my main room and Forte IV in my general living room. You give up pin point technical imaging and get a slightly warm/ opaque sound that is more relaxed and what some would call Musical.
- SPDIF is probably best for upbeat music like Techno or EDM
In closing having owned some really pricey gear it seems like as you spend more you get more details and transparency but then spend more money on cables and room treatments to tone it all down. We are interesting creatures aren't we...
