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audio.bill

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  1. I believe the Roon Nucleus (and Roon Nucleus Plus) both operate from a 19V power supply, so I'm curious to learn how you use the JS-2 to power a Nucleus since it appears to have a maximum voltage setting of 12V. TIA!
  2. No Tim, please don't do that... It's great to have your active participation here and your opinion has value to others! There may be some disagreement along the way but that's all a part of how we can continue to learn from each other's experiences. I appreciate your valued perspective which of course will include some opinions along the way.
  3. Here's a direct link to the page, and you can click on the photo to enlarge it: https://www.schiit.com/products/unison-usb
  4. Congrats on getting the complete set, hope you enjoy all the new tunes! Can you share pricing info, i.e. is there any discount on the set vs individual pricing? TIA
  5. I'd respectfully suggest keeping any such discussion of discounted pricing limited to PMs and not be posted on the public forum. This is out of respect for the manufacturers and their dealers many of whom we depend upon for the enjoyment of this hobby and appreciation of the music we all love.
  6. Actually it does support I2S as stated on the product page with connection details specified in the datasheet download.
  7. I would expect that answer to likely be dependent upon the specific power amp being used, and how well it performs being driven passively compared to with an active preamp.
  8. Any idea on its price? (No mention of it on the site) "The Precision DAC will be shipping at the end of September 2019."
  9. Maybe he was just having a bad day, or his post was adversely affected by some rogue auto-correct software. 😉
  10. A few points for your consideration comparing these two DACs... The Rowland Aeris decodes PCM only (no DSD), and can be upgraded significantly with their optional PSU The T+A DAC 8 DSD decodes PCM and DSD, but reportedly excels with high rate DSD I haven't ever directly compared them but am familiar with both. Don't assume a newer DAC design will outperform an older one, like most things in high end audio there are generally trade-offs between different designs. If you have all PCM files and don't plan on getting into DSD then the Aeris may be the better choice since it is optimized for PCM. The DAC 8 DSD provides unusually good sound quality with high rate DSD files, but more average quality with PCM decoding. Most T+A users seem to prefer their PCM upconverted to high rate DSD using HQ Player so that the DAC 8 DSD handles the conversion to analog from DSD which it excels at. Running HQ Player to perform such high rate DSD conversions with their most advanced filters is very resource intensive and requires a powerful PC, even in some cases also using additional processing power from a high end graphics card. So to get the best out of the T+A would require a commitment with additional hardware for your server compared to what you probably already have. From what I've heard the new optional PSU from Rowland provides a significant upgrade to the performance of the Aeris DAC, and while not inexpensive could be a way to improve the DAC setup you already have in place. Hope this helps at least a bit, and please let us know how you decide to proceed. Best of luck and good listening!
  11. At least having a simple resistive load allows output current to flow, which operating with no speaker connection does not permit.
  12. Just as another point of reference, the NuPrime Evolution One amp which uses their own Class D design (not someone else's module) has a switching frequency of 700kHz along with a 1MOhm input impedance. According to their claims: "High-speed computing simulations were performed for the Evolution One design, in order to achieve the highest input impedance and the lowest phase delay."
  13. In my opinion it would be more realistic and impressive to quote this amp at 300W into 4 ohms with <0.001% THD+N.
  14. Didn't anyone else notice the high THD at its rated power? Output Power 450W @ 1% THD, 4Ω, yet they claim it sets a standard for power amplifiers of any class... That's not very impressive from my perspective.
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