In Reply to: Achieving ultra quiet with M3 pre posted by DougE on October 8, 2007 at 09:31:02:
I built my M3 with the changes seen in the picture so I cannot tell you how much improvement there is but it is very quiet with 100db speakers.
Ensure that the shield between the power supply and output sections has a good ground. On mine, the shield and chassis needed a bit of paint scraped off. I also moved the transformers like some folks. I ran the signal lines in copper tubing which is grounded to the chassis. No sense in having wires acting like antennas especially so near a power supply.
Regards to all,
Tony
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Follow Ups
- RE: Achieving ultra quiet with M3 pre - driguy 15:34:54 10/11/07 (1)
- Tony, your copper tubing idea - DougE 19:51:40 10/11/07 (0)