Features 4 Digital Receivers in one unit Description Product Description Why you need the Shure ULXD4Q Quad Digital Wireless Receiver, J50 Band 572-636 MHz:Want the best of the best? You want the Shure ULXD4Q Quad Digital Wireless Receiver, J50 Band 572-636 MHz. The Shure ULXD4Q Quad Channel Digital Wireless Receiver offers four channels of uncompromising audio quality, RF signal stability, and advanced setup features in a space-efficient single rack unit. Rugged yet lightweight and compact, the 1RU all-metal chassis houses four independent receivers, each with its own audio and RF meters, gain control, and XLR outputs that can be either direct or summed for flexible signal routing.With the suite of features and benefits ULX-D® Digital Wireless Systems offer, the ULXD4Q is truly generations ahead of any other available receiver in its class, and brings a new level of performance and scale to professional sound reinforcement.