The SA-3 takes the algorithms of the Engineering Emmy Award winning SA-2 Dialog Processor to another level. New features include adding over 1,000 bands of processing, a user programmable Bias Curve, unique Focus, Range, and Density control over spectral processing, side chain support and mid/side processing. Like the SA-2, the SA-3 is great for removing unwanted spectral spikes in dialog, vocals, and many other kinds of audio inputs. The SA-3 is also able to track and eliminate persistent peaks, at nearly any frequency in the audio spectrum. The gain reduction, final output, or removed signal can be monitored and metered in the main LCD screen. Plot scales can be adjusted for gain reduction and output displays.