MXR M234 Analog Chorus Material_Ivoroid while the LED setting uses

while the LED setting uses LED diodes for a more wide open sound and a nice gain bump

so you can use MORE tremolo without losing anything

and Gain controls to fine-tune your sound to taste

yet never muffles your low end

This 11-49 Medium gauge set provides increased volume

MXR M234 Analog Chorus Material_Ivoroid while the LED setting usesMXR ANALOG CHORUS M234 The Analog Chorus creates classically lush, liquid textures with Rate, Level, Depth, High, and Low controls for superior control over your sound. THE LONG STORY. The Analog Chorus uses bucket brigade circuitry to create classically lush, liquid textures that you just can't get with digital circuitry. Rate, Level, and Depth controls, as well as knobs for cutting High and Low frequencies allow ultimate tone control. Like all MXR