3 Band Compressor is designed with mix programme and mastering compression applications in mind, where band isolation is second to phase distortion. With gentle Slope settings MultiBD3 gives minimal phase summing distortion and smooth sound. The displayed frequency response is true WYSIWYG. It shows the actual summing response that occurs given the current settings, so the engineer can avoid sets of values (typically narrow bands and shallow slopes) which lead to an uneven response.