How does 10+ year old technology compare to modern: Musical Fidelity M1 DAC

Yesterday, I just picked up my Schitt Yggi+ OG after it was sent to Colorado for a high-end audio fest. I wanted the people there to compare top end DACs against the Yggi+ and give me some feedback.

This was posted on Head-fi.

Another Head-Fi’er, @yyzSB, sent his Schiit Audio Yggdrasil+ OG DAC with Danny, and I got a chance to listen to it not only driving my Immanis through my Zahl HM1 and VM-1a, but also through Danny’s Feliks Audio Envy. It has great tonal density—more than my Dave. And it does bass drum better than I think I’ve ever heard. Not only with the impact of the drum strikes, but the hollow reverb (I mean hollow in a good way here) of the sound of that strike bouncing around inside the drum. Timbre across the rest of the FR, and technicalities, were a touch behind my Dave, with the Yggi+ sounding a hair more digital. But the Yggi+ is also much less expensive and offers insane SQ per $.

The person I picked up the DAC from is a musician with incredible hearing. He told me he liked the Mola Mola Tambaqui a bit more, but he did say something that really surprised me. He said that in a blind test even he likely could not tell the difference.

I have a Schitt Yggi+ LIM also and I am going to convert it to the More Is Better because it sounds more like the OG.

Both of the DACs mentioned cost $15k.

BTW - the Mola Mola Tambaqui was actually designed around 2005 by Bruno P. I would love to own one if it cost under $3k Bruno mentioned the history of the DAC in an interview on ASR. The Tambaqui DAC was originally the DAC module in the Makua preamp.

The architecture of a DAC can matter too. Many on here have bought 8+ year old PS Audio Perfect Wave DACs from The Music Room, or direct from PS Audio, and say they sound great for the money - even compared to new DACs costing about the same. They were on close out or refurbed because their newer one is now out. They use an FPGA chip which had a firmware update a year or so ago making them sound great, especially at ~1/3rd the original price. 

My only concern is that well, everything will at some point wear out, but we hopefully can assume that modern quality devices made since 2010 use capacitors that don't change value over time and they should last decades.