Mark bass S2 MOMARK Modulo S2 S2 Product code: s2 Two solid-state preamps Ultra-linear frequency response Inspired by the LMK preamp Designed for flexibility, the S2 solid-state preamp module features two input channels with gain control and clip LED for each. Set separate levels for two basses(i.e. an electric and an acoustic) or use one of the inputs for your instrument and the other for a drum machine, laptop, keyboard or bass pedals!