The Lectrosonics MI39ARA Active Instrument Cable- TA5F to - Right Angle ¼" Plug 30" (76.2cm) is designed for use with IM, LM, UM400, SM Series, SMa Series, LMa and UM400a transmitters with servo bias inputs.
Built-in JFET active preamp for optimum interface with instrument pickups
Designed for musicians who demand rugged, high quality equipment and the best sound quality available