Our materials science research in the properties and applications of carbon allows the M2 to feature a new monocoque enclosure. Similar in construction technique introduced in the M6, it is formed using multiple layers of carbon fiber adding up to a 3/8” thickness. Similar to the external shell of an F-35 fighter jet, this enclosure construction compared to machined or extruded aluminum parts increases the structural strength-to-weight ratio by a factor of 60, while reducing overall weight by 50% and yielding outer dimensions that are 30% smaller without compromising internal volume. The curved interior and exterior walls minimize internal standing waves and eliminate external diffractions.