Use the settings of MQA Core Decoder option in Roon. The options that work are: “decode and render” and “decode only”. Decode and render option should provide a better sound.

If your Windows USB audio is not working, go through the following diagnostic: Download and run Windows USB Troubleshooter Following these manual troubleshooting steps. To rule out any hardware failure, you should also verify that the NuPrime product is working with another computer.

WASAPI – Applications communicate with the audio driver through Sessions, and these Sessions are programmed through the Windows Audio Session API (WASAPI). In general, WASAPI operates in two modes. In exclusive mode (also called DMA mode), unmixed audio streams are rendered directly to the audio adapter and no other application’s audio will play and signal […]

A good source of information can be found here: http://allen-heath.helpserve.com/Knowledgebase/Article/View/1002/201/qu-windows-driver-understanding-and-troubleshooting We recommend that customer set the USB streaming mode to “Safe”

Our DACs follow the standard XLR pinout. Pin 1 = Ground; Pin 2 = HOT (+); Pin 3 = COLD (-)

USB Host & USB Client USB Audio is a standard for digital audio used in PCs, smart phones and tablets to interface with audio peripherals. The source device that produces the data is called the USB Host and the receiving end is the USB Client. So, if a smartphone is connected to a computer, the […]

DAC’s Volume Control Basic A DAC typically has a mix of analog and digital inputs. Some DACs convert the analog input into digital to utilize the DAC’s internal digital volume control and inputs selection, avoiding expensive analog preamp and volume control as described above. The performance degradation of the analog input that has to go […]

Mac OSX does not support native DSD. It only supports DoP (DSD over PCM).  Since encoding DSD into DoP requires twice the bandwidth, when using NuPrime’s DAC with Mac OSX, the support of DSD is limited to half of the maximum decoding capability of the DAC. From Audirvana: “To listen to DSD files from a […]

DAC-10 / 10H line out can be turned off by holding the Mute button for 3 seconds. The line out will not automatically turn off when the headphone is inserted because there are multiple headphone outputs. To enable the line out again, press and hold the Mute button for 3 seconds.