Hi all. I connected my AT-LP5x turntable (with built-in pre-amp) to my mu-so 2nd gen via RCA cables to 3.5mm jack. The sound is … ok. Lacks gain and is generally underwhelming. I got a Pro-ject phono box E and connected it to the turntable via rca, and to the mu-so via toslink optical cable. But it buzzed terribly! I added a grounding cable between the pro-ject box and the turntable, but it made zero difference -still a persistent low buzz.
Any advice on a better pre-amp solution to boost gain without buzz?
The Mu-So floats the earth. Getting a buzz from using the optical input makes no sense to me unless it’s an earth issue within the AT-LP5x that’s then being converted to digital along with the music signal.