This product is discontinued and the information here is only for reference. It has been replaced by the LS-58-072

Advanced Installed RF System (72 MHz) (Discontinued)


The Advanced Installed System includes the LR-500 programmable receivers, a charging case and rechargeable batteries to add functionality and value to your system. Perfect for where your guest changes the channel to find the audio source. The LR-500 receiver can be programmed to receive only the channels you are using. You can also substitute any accessories to better meet your needs, such as substituting a rack mount kit, antenna, or additional receivers. Use this system for auditory assistance, in-ear cueing, board and training meetings, and overflow areas. Great for outdoor events, corporations, theaters, and houses of worship.

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This product is available through authorized resellers.

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(1) LT-800 Stationary RF Transmitter (72 MHz) 
(1) LA-122 Universal Antenna Kit (72 MHz)
(1) LA-326 Universal Rack Mounting Kit
(4) LR-500 Portable Programmable Display RF Receiver (72 MHz)
(4) LA-164 Ear Speaker
(1) LA-317 4-Unit RF Product Charging/Carrying Case
(4) LA-362 NiMH AA Rechargeable Batteries (2)
(1) LA-304 Assistive Listening Notification Signage Kit


  • Perfect for where your guest changes the channel to find the audio source
  • Superior Audio Quality – 80 dB signal-to-noise ratio, setting the industry’s sound quality standard
  • A choice between 57 channels – ideal for a wide range of applications
  • Long transmission range ensures coverage for the entire venue
  • Programmability – Unneeded channels can be locked so this receiver will access only one or more channels of your choice
  • 100% Digital – Listen receivers are digitally-tuned so transmission won’t drift
  • Uses standard alkaline or NiMH batteries
  • Built in SmartCharge™ won’t allow batteries to over charge
  • Limited Lifetime Warranty with hassle-free support

Also Needed



Shipping Weight25.0 lbs (11.3 kg)




+Can I customize a Listen System?

Yes. All Listen Systems can be customized for any size group.

+What's the advantage to purchasing a system as opposed to separate pieces?

Ordering a Listen System is a convenient way to ensure your order includes all the necessary components. While there is no price break for larger volumes, you can add or remove items without a price penalty.

+What is the difference between the LR-400 and the LR-500 besides price?

Both receivers can tune to 57 channels, both wide and narrow band. However, the LR-400 has the buttons to make changes under the battery compartment door and the LR-400 is not programmable. If you plan to use one receiver with multiple transmitters you should use the LR-500 which is programmable to just those channels you need.

+How many receivers can I have in a system?

As many as you need, the number is endless.