The SGI-44 is a line driver for guitars and basses that connects to the JX-44 to allow a remote pedalboard to be connected without signal loss or noise. Balanced line driver for JX-44 guitar & amp switcher. Send signal over 100 meters (300ft) without loss. 100% discrete class-A circuit with Drag control, bidirectional send & receive effects router. • MFSKU R800 6700 00 • UPC 676101039456