Russound X1-TX8 XStream Wireless Transmitter. All items included. I bought this with the intent to transmit eight audio channels to four X1-RX2 Wireless Receivers About the Russound X1-TX8 Go wireless with just about any audio source Multi-room audio systems dont have to mean running wires through walls. Russounds X1 wireless audio system lets you send music from up to four audio sources in a central location to as many rooms as youd like, without running wires. The X1-TX8 wirelessly transmits signals from up to four audio sources of your choice. Pair it with one or more compatible Russound X1 receivers — choose from the X1-RX2 or the amplified X1-RX220 — to add music to a bedroom, kitchen, patio, and porch. This transmitter features four stereo RCA line-level inputs — great for connecting Zone 2 or 3 preamp outputs from a home theater receiver. If your receiver has multichannel preamp outputs, you could also use this transmitter to send audio signals wirelessly to your surround speakers instead of running wires to rear of the room. (Remember, in either of these cases, youll need a separate amplifier to power your speakers.) The fourth of these RCA inputs can be A/B switched with the optical digital input for direct connection of a digital source like a digital media streaming box or network music player. The X1 system operates on multiple wireless bands for noise-free performance. It doesnt require a connection to your Wi-Fi® home network and can switch between bands automatically to limit interference from other wireless activity. READ LESS Product highlights:transmits audio signals from connected sources to compatible Russound wireless receiversrequires the Russound X1-RX2 or X1-RX220 wireless receivercan transmit to an unlimited number of compatible receivers over proprietary RF network3 stereo RCA inputs1 switchable RCA/optical digital inputwireless range: 100 feetmounting bracket and screws includedfrequency response: 20-20,000 Hz4-13/16W x 1-1/2H x 3-5/8DMFR # X1TX8 Whats in the box: Russound X1-TX8 owners manual Wireless transmitter AC power adapter (w/ attached 59 DC cord) 3 AC plug inserts (US/EU/UK) 2 Diversity antennas 5 Stereo RCA cable 57 Optical digital cable Mounting bracket Installation Manual