Shure SB900B Lithium-Ion Rechargeable Battery 100790135 These introduce a more acute

These introduce a more acute 10º angle that better directs the tweeter to the listening position

The EXTC takes the line level balanced output of your recording interface and converts it so an instrument level high-Z output optimized for guitar effects pedals

Other detachable cables with a variety of output terminations are available separately

Yorkville C120P 5-Inch Powered Install Speaker

Shure SB900B Lithium-Ion Rechargeable Battery 100790135 These introduce a more acuteShure SB900B Lithium Ion Rechargeable Battery Works with PSM300 (P3RA only), PSM900 (P9RA only), PSM1000, UR5 Portable Diversity Receiver, QLX D Digital Wireless Systems, ULX D Digital Wireless Systems, and Axient Digital (AD1 and AD2 only).