are stereo 5ch input selector, input-gain control, main volume, loudness and a 4ch fader volume. It is equipped with an “Advanced switch circuit”, which is an original RO.

BD37522FS is a sound processor with built-in 2-band equalizer for car audio. Other features are stereo 5ch input selector, input-gain control, main volume, loudness and a 4ch fader volume. It is equipped with an “Advanced switch circuit”, which is an.

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