How much coverage is provided with the LA-140?
Approximately 10,000 square feet (929 square meters).

Does the number of audio sources (carriers) affect the coverage?
Yes, for two sources (carriers), the coverage per carrier is halved. For four carriers, the coverage per carrier is one-fourth.

How many radiators can you use on a system?
Up to 100.

How many radiators will I need?
Refer to the technical resource section of the Listen website for assistance in making this calculation.

Does the LA-140 come with a power supply?
No, you must use either the power supply included with the LT-82 transmitter or purchase the optional LA-205 power supply.

How is power delivered to the radiator?
Power is delivered with CAT-5 cables (connected between the radiator and either the LT-82 transmitter or the optional LA-205 power supply).

How many radiators can be powered from the LT-82 or LA-205 power supply?
Two

What is the purpose of the delay compensation switch?
This switch allows you to set up delay timing in a multi-radiator system so that each radiator receives the carrier at exactly the same time. This prevents signal dropouts that can be caused by out-of-phase signals (multi-path). With Listen’s delay compensation switch, it is not necessary to cut all of your coaxial cables to the same length - your shorter runs can use shorter cables, keeping your installation clean (and cost-effective).

How do I connect multiple radiators?
You can daisy-chain the carrier between all radiators using RG-58 cables. Power for up to two radiators can be daisy-chained using a short length of CAT-5 cabling or you can power two radiators off one transmitter.

Can I disable the LEDs on the radiator?
Yes, the LEDs can be turned off at a switch on the back of the radiator.

How many emitting diodes does the LA-140 have?
The LA-140 radiator has 84 diodes. It has 7 columns of diodes with 12 diodes each. If one diode goes out, you will lose only the diodes on that column.