4-Person Enersound Assistive Listening System with ADA Plaque (5-Year Warranty)

The ALC is a wireless FM system that sends a speaker’s audio directly to individual listeners, helping reduce the effects of background noise, distance and poor room acoustics on speech comprehension. It is suitable for meeting rooms, schools, houses of worship, theaters, public hearing rooms and other venues.

The package includes one T-500-4 base transmitter with antenna, the selected number of R-100 digital receivers, compatible EAR-120 dual earphones and an ADA assistive-listening plaque for display at the venue. The product is available in configurations for 4, 10 or 20 listeners.

Audio from a microphone, mixer or compatible sound source is connected to the transmitter and broadcast wirelessly to the receivers. Each listener hears the audio through personal earphones, minimizing the loss of clarity normally caused by noise and distance.

Not by itself. To support ADA accessibility for guests who use hearing aids with telecoils, NKL-402 neckloops must be purchased separately and used with compatible receivers. The number of receivers and neckloops required depends on the venue’s capacity and applicable accessibility requirements.

Yes. A compatible telecoil neckloop can transmit the receiver’s audio directly to a hearing aid equipped with a T-coil. Neckloops are not included with the standard package and must be purchased separately.

The transmitter can broadcast to an unlimited number of compatible R-100 receivers. The system can therefore be expanded by adding receivers, earphones and neckloops as the venue’s accessibility needs grow.

The standard system provides coverage of up to approximately 500 feet under suitable conditions. Its range can be expanded to as much as 1,000 feet with an optional external antenna. Walls, obstructions and local radio interference may reduce the effective range.

The T-500-4 transmitter offers four selectable channels at 72.1, 72.5, 72.9 and 75.7 MHz. Each R-100 receiver can be programmed to one of 20 available frequencies and includes a channel-lock feature to help prevent accidental changes.

Each R-100 receiver operates on two AAA batteries. Battery life is up to 55 hours with alkaline batteries or up to 40 hours with rechargeable NiMH batteries. Actual operating time may vary depending on battery condition, listening volume and usage.

Yes. The T-500-4 is designed for straightforward setup and can be used on a tabletop or installed in a rack with optional mounting hardware. It includes multiple audio inputs for connection to microphones, mixers and other audio sources. The transmitter and receivers are covered by a limited three-year warranty, subject to the manufacturer’s terms.