This is the main window of SX Fidelity Amplifier where you can se ethe main buttons, the Satration and Contrast buttons and the Preset selector 

Here you can see the Spectrum panel that displays a compared view of the Left and Right speakers and of the Original and restored sound 

The Advanced mode panel lets you set manually the Restoration frequency and the Post enhancement like Amplification, Bass and Stereo 

Here is the Equalizer which you may set manually or adjust according to a certain preset mode that you can choose from a list