The J.A. Custom Rocket suits people who like the feel of a Special 20 but love the sound of the traditional Marine Band. The Rocket has a crisper and brighter sound than the Special 20, which is due primarily to the side vents in the cover plates. The Advanced model has unique features, including its own serial number. The harmonica features expert reed work, including a distinct embossing method, for a great blues harmonica with a loud and crisp sound. Players will enjoy effortless bends, easy and stable overblows on holes 4, 5, and 6, and an easy and stable overdraw on hole 7.
It is also available with Rocket AMP covers which is great for people who like to play amplified. The non-vented cover plates gives a mellow and warmer sound. More towards the Special 20 sound that so many love.