BOSS MD-500 Modulation PedalStudio level sound with first in class 32 bit AD DA, 32 bit floating point processing, and 96 kHz sampling rate 12 modes and 28 modulation types, all with deep editing parameters Classic mod effects and BOSS originals, newly enhanced with cutting edge technology A B Simul mode for using two patches at once, with your choice of series parallel connection and mixed or split A B output Insert Loop function allows you to use mod effects before, after, or