Oh, I'm sorry, I did that. I listened to a Bob Dylan record on the prior C-J phono amp, then disconnected it and plugged in the Schiit phono. Took perhaps 30 minutes putzing with cables and power. Listened to the same record again. Improvement was immediate. Now, that being said, there may be something wrong with the C-J Phono that needs attention, but other than the low hum described (which is has done for 20 years) it seemed to work just fine.
I get what your saying because some time ago I was putzing with loading in the C-J unit. At 47K ohms I thought it sounded better, but after a week of listening I switched to 100 ohms because of brightness....
I'll break it in for a week or so and chime back if something changes.