There was a time when any hi-fi worth its salt had a little row of sliders on its front panel, a graphic equalizer. On a hi-fi these arrays of variable gain notch filters were little more than a ...

but rather by changing the EQ of the headphones. Some headphones apps only have presets, others have more advanced graphic ...

Photoshop CS6 Extended tutorial showing how to create a retro, graphic or music equalizer. In Part 2 (the next tutorial) - ...