Granelli Audio Labs grew out of yet another real world example of “necessity is the mother of invention” – which is very much the story of all classic pieces of pro audio equipment. The Granelli Audio Labs story begins in 2009 when John Grant of Secret Sound Studio and his friend and colleague Tony Correlli of The Deep End Studio in Baltimore, Maryland were talking-shop late one night, and decided that it would be worthwhile to modify one of their SM57s to make it easier to position in a crowded drum kit. They fashioned an adapter out of a piece of PVC plumbing elbow and inserted it between the capsule and transformer handle of the SM57. The result attracted the attention of drummers and clients who eventually began requesting that they build the same for them… A light-bulb moment! Realizing that they had to do more than sell a piece of PVC plumbing elbow secured with gaffers’ tape to the pieces of the microphone, they got to work to design a product worthy of the legendary Shure SM57 Dynamic Microphone. After many different designs, mock-ups, and tests, they ultimately landed on the perfect design, and thus, the Granelli Audio Labs G5790 Microphone was born.