The 23 effect algorithms in the RSP-550 are combined into a prearranged order called an algorithm. The edit parameters that are available for each effect can quickly alter how the algorithm sounds. The RSP-550 has 39 different algorithms which fall into three different categories: individual effects, multiple effects, and discrete stereo effects. These algorithms, which are permanently stored in ROM, reside in memory locations 161 through 199. To access these 39 preset memory locations, use the following procedure:
1) Use the PROGRAM/PAGE buttons to call up preset 161 "[161 Hall 1]. "
2) Use the PROGRAM/PAGE UP button to scroll through the 39 preset algorithms.