The speaker simulation loads so-called impulse responses (IRs), which simulate the characteristic features of real guitar and bass speakers. You can choose among the existing Celestion IRs or upload your own into your browser. Your personal IRs disappear on shutting down or relaunching the application and are therefore not accessible to others.

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MXRM 83 Bass Chorus Deluxe

MXR M 83 Bass Chorus Deluxe

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