def remove_response(stream, pre_filt=(0.01, 0.02, 8.0, 10.0),
                    response_output="DISP"):
    """
    Removes the instrument response.

    Assumes stream.attach_response has been called before.
    """
    stream.remove_response(pre_filt=pre_filt,
                           output=response_output,
                           zero_mean=False, taper=False)
    return stream