Cardas Audio RCA Signature Series プロテクティブキャップ（ペア）

The snug fit on my RCA jacks is perfect, and I noticed an immediate quieting of the background hiss once they were installed. My system sounds noticeably cleaner now.

Popping these on my unused inputs felt oddly satisfying—the snug fit is exactly what I needed to keep dust and interference out. I can already tell they’ll save me from future crackle when I swap gear.

Dust was always settling into my unused inputs, so these caps finally put an end to that constant worry. The snug fit is exactly what I needed, and they also seem to block out that faint hum I used to hear on idle channels. Simple fix, but a noticeable difference in my setup's quietness.