@dbb - Your problem may be Volumio, not the iFi hardware. I had a miniDSP SHD streamer running the Volumio OS. It didn't drop the signal, but it behaved in a quirky, intensely frustrating manner that I couldn't control. The hardware was excellent, but after knocking my head against the wall for six months I sold the unit.
With a budget of $1000 why not the Cambridge or Blue sound. You could get a Node and an LHY lps and stay within budget using your external DAC. Best of luck.