I have Chadonnay and Berning ZH-270. No hum issues. Suggest you check out Mick's suggestions on gain switch settings on "Preamp of the Century" thread.
This year I have gone through three different cable set-ups. Started with 47Labs OTA as interconnect and speaker cable. The 47Labs was a solid improvement over previous MIT cables. Upgraded to Luminous Audio Reference interconnect and Synchestra speaker cable. And just last month settled on Audience AU-24 interconnects and speaker cable. I would agree with most of the professional reviews on strengths on AU-24.
- Ken
This year I have gone through three different cable set-ups. Started with 47Labs OTA as interconnect and speaker cable. The 47Labs was a solid improvement over previous MIT cables. Upgraded to Luminous Audio Reference interconnect and Synchestra speaker cable. And just last month settled on Audience AU-24 interconnects and speaker cable. I would agree with most of the professional reviews on strengths on AU-24.
- Ken