Saint- the issue is that the phono stage is very high gain and the whole pre uses unshielded wires. The unit can pick up hum from its own power supply, or from other transformers in your rig. You may have to experiment, but in general, try to keep the phono input cables AND the control portion of the pre as far away as is reasonably possible from the power supply. Keep the main remote removed from other transformers as well, and make sure the line ins only cross a power cord at right angles. Make sure you tone arm leads are grounded to the pre. Of course, there's also the possibility of ground loop hum, but that's another issue.
Preamp Deal of the Century
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- 3888 posts total
- 3888 posts total