[Pre Order - allow extra time] Shure ULXD4 Single-Channel Digital Wireless Receiver (J50A: 572 to 608 + 614 to 616 MHz) For Large Venues & A/V Installations, 1 x Digital Audio Channel, 1/2 Rackspace, 44 MHz Tuning Range, Expandable up to 60 Channels, 1...