Filtro RCA-DC

Plugged this inline between my head unit and amp and the difference was instant, no more faint whine creeping in at low volume. The amplifier runs cooler too, which tells me it's actually cleaning up the signal path like it should.

The DC noise that was riding along my signal path is completely gone after adding this filter, and my amp runs noticeably cooler now. Setup took two minutes since it just plugs inline. Wish I'd grabbed one sooner.

Installed this inline on my RCA run and the ground loop noise is just gone, dead silent now. My amp runs cooler too since it's not fighting that DC offset anymore. Simple little thing but it fixed a problem I'd been chasing for weeks.