Designed with functioning sensitivity ranges from -10 dBu to +2 dBu for use with both passive and active electronics, a maximum gain reduction of up to 21dB, and a three-way attack toggle switch with modes for fast, medium, and slow, the Electro-Harmonix Bass Preacher Compressor puts punchy bass tone within easy reach. Housed in a compact chassis with an attractive price tag to match, the Bass Preacher sings the gospel of dynamic low-end control.