M-300 Road Case on September 5, 2015 | Marketing Team Road Case for M-300 (available from Wilson Case) ROLAND M-300 V-MIXER CASE: 87-181 This road case is custom made for the M-300 V-Mixer Console. Wilson Case uses only top quality raw materials and hardware to manufacture tough shipping cases that are able to be used again and again. Strict quality control guidelines are followed through out the production and inspection phases.