GT-6, GT-8: What is COSM April 10, 2023 06:02 Updated Follow COSM is an abbreviation for Roland's "Composite Object Sound Modeling" technology that shapes audio by applying the sonic characteristics of popular or classic microphones, guitars, guitar amplifiers and studio reference speakers. Related articles BOSS TONE EXCHANGE: Can I use the same Liveset downloaded from BOSS TONE EXCHANGE with other BOSS products? GX-100: Differences between the GX-100 and GT-1000 RD-88, RD-88 EX: Downloading SOUND PACK and WAVE EXPANSION GT-1000, GT-1000CORE: How many effects can be used in a single patch? SY-1000: When first setting my SY-1000 up it won't work with my normal guitar pickup!