Check the listing for details. Danelectro Spring King Junior Reverb Pedal. Condition: Used. Listed at 179.10 USD. The Spring King Reigns Again In 1999, Danelectro debuted the original Spring King reverb, a pedal that proved to be monstrous in terms of tone and size. Fast-forward 25 years, the Spring King Junior is here to reclaim the throne. While this sibling's sounds are as big as ever, the size of the pedal is far more subtle. Just like the original, the Spring King Junior features a real spring tank to produce its authentic reverb sounds. Danelectro also crafted the Spring King Junior from die-cast casing for extra durability, though it also includes a soft footswitch for gentle activation.