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v-four

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  1. Thanks AlainGr and One and a half for the info, I tried the following: PC unplugged and stereo on = problem remains With the PC off, USB cable unplgged, and stereo on= problem resolved With the PC off & plugged in, DAC magic off & plugged in, and stereo on = problem resolved With the Dacmagic off the problem is gone, so it is the interaction between the SOTM card & the dac that is causing the issue. When using a Toslink connection between the PC & dac there is no problem but the sound is better when using the SOTM card. The PC & Dac are both plugged into the APC H15. I do have a filter on the main shaw cable line coming to the router. OK now what does all this mean?? This the first SOTM has heard of a problem like this.
  2. Hi all, I'm new to this site and have come hat in hand to get help with my computer audio problem. My problem is a follows: With the stereo ON and the PC OFF, I get a constant stream of static through the speakers. Once I turn the PC on the static stops. I have tried two different usb cables and there is no change to what I have described. If I change the input on the stereo and/or the DAC the static remains, the only way I can get the static to stop is, turning ON the PC or the DAC. The problem started since installing the SOTM PCI-e usb card. I have sent the card back to SOTM to get checked and have been told it is working perfectly. Reinstalled it and the problem remains. My current configuration is: Custom build fanless PC design with power delivered through an APC H15 Power Conditioner: · Perfect Home Theater FLM-7 chassis · Gigabyte H97 GA-H97N-WIFI motherboard, Latest Bios version - F8 · i7 4790S CPU · 16gb ram · 256gb SSD for the OS · 1tb SSD for music storage · 50” plasma TV as the monitor · Windows 10 Pro · J River 21 · 160w pico power supply SOTM USB card connected via USB to my Cambridge Audio DacMagic Plus which is connected via unbalanced IC’s to my stereo. The SOTM card also has the rear faceplate power switch in the off position. The static has to be coming through the signal side of the USB cable, as the power is turned off at the card & the power side of the USB cable is disabled. Any help is greatly appreciated. v-four
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