API 505 DI Direct Input Module for 500 SeriesLike the console based API 205L, the 505 DI is specifically designed to accept a guitar, bass or keyboard direct input while minimizing any loading effect on Hi Z instrument pickups. Additionally, the 505 DI's Gain Control is used to normalize an instrument's input level, up to a +4 dBu output level. API's unique TONE control reduces potential low end mud in the signal, while turning on the BRIGHT switch adds additional clarity if desired. The various