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XAHTP

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  1. I wouldn't bother with any of these, especially Diverter which feeds off dirty USB power and very secretive about the innards of their device. M2tech Hiface (which is what Offramp 4 is based on) is very good in its stock form. If you really something even better, checkout the jkeny's modified hiface: https://sites.google.com/site/hifacemods/home/mk2-boxed-hiface-1 I really don't think that USB-to-SPDIF converters close to one grand and beyond are worth it. That money is better spend on a DAC that skips the SPDIF protocol altogether. In other words, life is still good, you can easily get superior USB-to-SPDIF converter for well under a grand.
  2. All else being equal, how do these chips compare? Which one is more suitable for USB implementation?
  3. 8 pieces of PCM1704UK, balanced output http://www.audio-gd.com/Pro/dac/RE8/RE8EN.htm
  4. Not sure if jitter is the right way to call, but its definitely some form of transmission error that can cause DAC buffer overflow, increase jitter, pops/clicks, etc. SSD is unlikely to have an advantage in this area (if any at all) since you can get very low and stable latencies with standard drives, plus an external process can negatively affect any hard drive, including SSD. Still, it would be interesting to compare the two in terms of DPC latencies.
  5. Nice review, a top notch setup for HD800. I wonder how the Overdrive DAC compares to more common highend DACs like Benchmark and Lavry.
  6. You're right, latency doesn't matter if its steady, like say 50ms delay or 500ms delay. But what if your DAC cannot keep up with the "swings" of the incoming data (i.e. if latency changes from 50ms to 500ms or so due to some background process/etc of computer)?
  7. It works flawlessly on Vista x64 and WASAPI (J.River). Since Windows 7 has the same architecture as Vista, EMU should be perfect on Windows 7 too.
  8. DPC Latency is important for real-time streaming of audio and video. For more info and a free tool to test it, see the link below: http://www.thesycon.de/deu/latency_check.shtml What is your DPC Latency? Have you heard about it before? Have you done anything about it?
  9. You're right, its 0.5 not 1. I've mistaken it for 0404 PCI version. The EMU 0404 USB specs homepage is here: http://www.emu.com/products/product.asp?category=610&subcategory=611&product=15185&nav=technicalSpecifications So how does EMU's rating of ""
  10. Just saw on the main EMU 0404 homepage, that the specs for jitter have changed from 0.5ns to "< 1 ns in PLL mode (44.1kHz, Opt. S/PDIF Sync)". Not sure if their previous ratings were for DAC mode (no output to SPDIF).
  11. Used speakers are the best bang for your buck
  12. Another product that claims super magical performance with no logic/explanation to back it up. I wonder if they will release internal pics of that black box. If it will have a quality reclocker with a big buffer, I'll be surprised.
  13. I doubt Audiofile Engineering will be concerned about explaining how it "differentiates" from ASIO, WASAPI, etc. Like Amarra, Wave Editor is a Mac OS X ONLY application. ASIO exists for both PC and MAC, so they better have a logical explanation of what makes it better if want they their product to sell well.
  14. Interesting, hopefully Wave Editor would be more clear about what exactly is it doing and how it differentiates from kernel streaming, ASIO, WASAPI, etc, unlike that "magic in the box" Amarra.
  15. I've followed the Head-fi thread on A, and noticed that one poster said that A was using virtualisation to create an independent OS which then could process the audio without other software interference." In thats case it will probably be even worse than WASAPI, since the sound would be passing through two operating environments, host and virtual. The goal should be to minimize and remove unnecessary processing and just get the data to the hardware outputs, not create a whole new environment for it to pass through. Unless of course you want EQ, DSP, etc. "WASAPI provides 32 bit processing on a 16 bit architecture" What "16-bit architecture"? Vista or W7 x64 do not support any 16-bit applications, so WASAPI's architecture is either 32-bit or 64-bit.
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