I have tried using another pair of headphones with 64ohms and it still didn't work. All I have changed is the DAC, and it has 10ohms of output impedance for headphones which is right on target. I mentioned the microphone situation because I'm not getting any signal from the mic either, and I was just using a different DAC yesterday with this setup working perfectly fine. It's a bit of a chain but I enjoy the tube sound as do people hearing me, so I had to choose this specific DAC for all of the right I/O's. It has 2 direct inputs on the front and 4 TRS inputs on the back, and I use 1 backside TRS input to have my tube preamp connected, with the mic into the tube pre.

The FCA610's optical LED indicator also appears solid without flashing, meaning it has connection proper connection.Īnother thing to point out, is that I chose this DAC simply because it had the proper I/O's for microphones. The SPDIF cable does appear to work properly, since the small red light is visible before connecting it to the FCA610. I'm of course trying to drive digital signal (emulated surround sounds) through my headphones (DT 770 80ohm), which are connected to the FCA610's headphone output. I have the sound card as the default device in windows, and I have the SPDIF out option checked in the Xonar DGX Audio Center app. I have an SPDIF outputting from the sound card and obviously inputting to the FCA610. I have a Xonar DGX in my computer and a Behringer FCA610 as the external, but I can't seem to get any sound no matter what I try.

Behringer firepower fca610 review