Stinger Select's 2 channel ground loop isolator allows for excellent sound reproduction while eliminating noise inducing ground loops. Excellent frequency response for retaining bass performance. Eliminates unwanted noise associated with unmatched systems.

Eliminates ground loop noise from radio preamp Outputs & DC current from RCA cables
Excellent at reducing most noise in RCA signal paths
Utilizes proprietary audio transformer for a 1.3dB gain