General Asylum General audio topics that don't fit into specific categories.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ General Asylum ]

---

[ Alert Moderator ]

---

Noise disappeared mysteriously

Posted by M3 lover (A) on March 13, 2025 at 14:32:25

In Reply to: Recommended shielding posted by M3 lover on March 9, 2025 at 08:25:46:

Thanks to all who offered suggestions.

I had unplugged the phono stage from the integrated amp which eliminated the noise and confirmed that was the source of the problem. As stated, moving the PS reduced the noise but did not eliminate it. For the next few days I left it unplugged, using other inputs, while I worked on tax preparation.

This morning I plugged it in again to test a couple of suggestions. But the buzz did not return, silence even with high volume settings. So the gremlin was mysteriously cured.

For those curious about the phono stage, it is a second generation JLTi. That is the plain box version made in Australia. A friend had written a favorable review for Positive Feedback which encouraged me to try one. Originally they recommended using a wall wart. However a friend with a strong electronics background disagreed and built an outboard regulated PS for me. That did provide improvements with increased dynamics and deeper, more substantial bass. I've since used it for several years without any issues. It is plugged into a Chang Lightspeed line conditioner, while the integrated amp plugs directly into a dedicated line outlet.

So who knows why? Electronics remains a mystery to me. ;^)

"The secret of life is honesty and fair dealing, if you can fake that you've got it made." Groucho

This post is made possible by the generous support of people like you and our sponsors:

Schiit Audio

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---