SP-1 is a Vacuum Tube Processor designed to let the end user sweeten up and improve the dynamic range of any source. A carefully designed expansion process will bring out exciting detail that is so often masked by recordings that are compressed and engineered to be mono compatible. The SP-1 will also bring back amazing detail to digitally stored / processed recordings which where subject to data reduction processing.
SP-1 has a sub bass expander and an extended range of top treble expander. These expanders are top quality fully analog which use no vca’s and contain no noise or distortion generators. They add dynamic range by controlling the target frequencies with photo resistors.