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Author Topic: dCS USB dacs problem  (Read 2141 times)
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jarek
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« on: March 04, 2010, 03:53:35 pm »

Hi,
I would like to report exactly the same issues as I reported a minute ago for Ayre QB9 USB DAC. We tested dCS Scarlatti USB and Puccini USB clock upsampler, and there is exactly the same behaviour of XXHIghEnd on Vista. Looks like XXHighEnd cannot work with any "asynchrous mode" USB dac on Vista. Can it be solved ? What about XP and Windows 7 ?

Best regards
Jarek
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Windows 2008 Server Std 64bit *SP2* / dual boot with Win 7 Professional 64-bit *SP1* on SATAII spinning disk, XX on Spinning Disk, music on SATAII, i5-660 (4 cores) / 16GB RAM / Engine#4 *Adaptive Mode* / Q1/2/3/4/5 = *30*/0/0/0/0 (Dev.Buffer = *4096*) / ClockRes = *0,5ms* / Straight Contiguous SFS = 120 /  *Minimize OS = Off* / *Double Octo* Arc Prediction Upsampling /-> 24/768 Phasure NOS1 async USB DAC -> ARC Ref 40 Preamp -> mainamps.
jarek
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« Reply #1 on: March 05, 2010, 01:18:04 pm »

Solved for Q1 near 0. Greater Q1 causes sound more and more distorted.
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Windows 2008 Server Std 64bit *SP2* / dual boot with Win 7 Professional 64-bit *SP1* on SATAII spinning disk, XX on Spinning Disk, music on SATAII, i5-660 (4 cores) / 16GB RAM / Engine#4 *Adaptive Mode* / Q1/2/3/4/5 = *30*/0/0/0/0 (Dev.Buffer = *4096*) / ClockRes = *0,5ms* / Straight Contiguous SFS = 120 /  *Minimize OS = Off* / *Double Octo* Arc Prediction Upsampling /-> 24/768 Phasure NOS1 async USB DAC -> ARC Ref 40 Preamp -> mainamps.
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