Just received a newly purchased Nucleus+ as well as a Benchmark DAC3 HGC. Connected DAC3 via USB to Nucleus+ and enabled DAC3 “shows as DAC2” in Roon. DAC3 recognizes signal yet does not output sound to preamp. Flow is Nucleus+>(USB) Benchmark DAC3>(XLR) C22 Preamp.
Tried DAC3 in other system where Node2i is recognized by Nucleus and DAC3 worked fine. Flow is Nucleus+>(WiFi) Bluesound Node2i>(SPDIF) Benchmark DAC3>(XLR) Power amp.
Must be missing something. Any help is appreciated.
For some reason, my DAC3 HGC shows up as a DAC2 HGC USB 2.0 in Roon. However, it works fine (connected to RPi 4B running Ropieee). What sample rate are you sending to the DAC3?
Thanks for your response. I do not have headphones to confirm is sound will output. The DAC3 inputs blinks if no signal is detected (from what I read on manual). In this case, the USB input light will turn solid when playing from Nucleus.
As far as sampling rates, I have tried multiple to no avail.
Have you tried setting the internal XLR attenuation jumper to -10dB on the DAC3? Out of the box, it can output almost 20V RMS from the XLR outputs (see the first graph and associated blurb):
The C22’s input limit via XLR (according to the manual) is 10V. Is it maybe shutting down due to overload?
EDIT: Have you tried bypassing the C22 and going straight to the power amp from the DAC3 to test the DAC3’s output? With the DAC3 HGC, you don’t NEED a preamp, though I guess you may prefer the “tube” sound of the C22…
I bought my DAC3 HGC used and had to adjust the jumpers back to 0dB as it’s feeding a Benchmark AHB2 which is apparently designed to take the very ‘hot’ maximum output of the DAC3.
Thanks for the input guys. I actually just got off the phone with Rory from Benchmark. Excellent customer support. Apparently the issue was setting for volume on Benchmark set-up within Roon was on “Device Volume”. Upon changing to “Fixed Volume” I finally got audio output via preamp/amp. Thanks once again!