RDL ST-GSP1 Gated Speech Preamplifier - Mic to LineThe ST GSP1 is a gated speech preamplifier designed to be used in a variety of situations where it is desired to produce an automatically switched line level signal from a microphone. This module may be used in conjunction with other RDL modules to configure automatic mixing systems or may be used alone as a voice operated module. The open collector slave output may be used to trigger other equipment or RDL modules. The versatility of ST GSP1