Does the LT-800 include the rack mount?
No, but an LA-326 Universal Rack Mounting Kit is available for purchase.

Do I need a transmitter for each audio source?
Yes.

What is the range of the LT-800 transmitter?
Line of site up to 1500 ft. (457 m) for 72 MHz.
Line of site up to 3,000 ft. (914 m) for 216 MHz
Line of site up to 400 ft. (122 m) 863 MHz.

Is there a limit to the number of transmitters I can use in one room?
Yes. The 72 MHz LT-800 has a maximum of six. The 216 MHz LT-800 has a maximum of three. The 863 MHz LT-800 has a maximum of eight.

How many receivers can I have on a system?
As many as you want. The transmitter simply transmits a signal and you can have as many receivers pick that signal up as necessary. It’s like a radio station transmitting and the receivers are the radios tuning into the “channel.”