BOSS AUDIO B25N GROUND LOOP ISOLATOR. Audio Systems B25N Noise Filter For Cars.

Compact and easy to use, this 2-channel RCA isolator plugs directly into your system’s line-level audio path—no complicated wiring required. Model: B25N. 🎧Why Choose the B25N?. Trusted by thousands of users, it’s a go-to solution for cleaner sound and better audio performance.

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