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After reading the clock upgrade to the Uptone USB Regen blog, I am inspired to investigate what's possible on the Auralic Vega DAC. About 20 years ago, I got Wadia's factory upgrade for the clock to the 27 DAC. Back then, the only details I could get were that the 20ppm accuracy clock was upgraded to a new 5ppm which was leading edge for TXCO at the time [- I did read the distinctions in the regen blog for measuring phase noise at 10Hz vs the marketing hype of fS jitter specs @ 100KHz :)] . The new clock produced a major snap into focus of the soundstage as well as an improvement to the naturalness of the sound. However, as time goes on, as with most mods, the changes that I initially perceived were not near the level of perfection that I could settle for. I then got inspired to power each of the Wadia circuits by battery. The first circuit I converted was the clock. It was significant. The analog Op Amps also benefitted significantly from battery. If the Vega is using a 20ppm then I am open to seeing if I can reproduce a similar magnitude of improvement to the Vega. According to the Stereophile review, the Sabre DAC lies underneath the black metal plate labeled "AURALiC DSD DXD". I'm guessing the clock is also underneath that plate next to the DAC. If so, does anyone have any experience with removing that plate? There appear to be two solder points on the front of the plate and two on the rear. I'm willing to take the plunge. Rich

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AC Power Upgrade that removes glare and adds resolution

I recently replaced the bridge rectifiers with CREE SiC Schotty diodes in my Vega DAC and then Antipodes DX music server with very positive results. Mainly enhanced resolution, better space, blacker backgrounds, wider soundstaging and removal of glare. I had read some very old posts that advised against using Schottky diodes for audio power amps but these posts were ten years old so after getting good results from my front end I took a leap that these newer CREE SiC diodes would deliver in my Kr

AudioBang

AudioBang




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