Williams AV PPA R37-20 – 20-Pack FM Assistive Listening Receiver Bundle

Product Overview

The Williams AV PPA R37-20 is a 20-pack FM assistive listening receiver bundle for large venues that need to scale ADA-compliant hearing assistance quickly. The package includes twenty R37 FM receivers operating on the 72-76 MHz hearing assistance band, twenty sets of AA alkaline batteries, and twenty EAR 022 surround earphones. It is the most direct way for an auditorium, performing arts center, or large house of worship to build out a receiver inventory that pairs with any Williams Sound wideband FM transmitter.

Product Description

Each R37 receiver in the bundle features seek-button channel selection with access to all 17 preset wideband frequencies reserved for hearing assistance by the ADA, and is compatible with all Williams Sound 72-76 MHz wideband transmitters such as the PPA T45, T46, and T27. Audio is digitally synthesized for clarity and stability, and the versatile 3.5 mm stereo/mono jack accepts a range of earphone and headphone options as well as neckloops for telecoil-equipped hearing aid users.

For venue operations, the R37 includes channel-lock capability so receivers stay on the house frequency, a battery-saving sleep mode that engages after roughly six minutes without an RF signal, and a low-battery indicator that simplifies pre-event checks. Each receiver runs up to 50 hours on two AA alkaline batteries, and a slide switch in the battery compartment allows a future migration to NiMH rechargeable batteries with Williams Sound CHG 3502 or CHG 3512 drop-in chargers.

If your facility prefers a rechargeable workflow out of the box, consider the PPA R37-12 PRO rechargeable 12-pack bundle with twelve-bay charger. Compatible transmitters and accessories are available in the Williams AV collection at Creation Networks.

Key Features

• Twenty-Receiver Inventory — Twenty PPA R37N FM receivers with batteries and earphones let large venues meet ADA receiver-count requirements in one purchase.
• 17-Channel Wideband Tuning — Seek-button access to all 17 preset frequencies in the 72-76 MHz hearing assistance band keeps receivers compatible with any Williams Sound wideband transmitter.
• Channel-Lock Capability — Receivers can be locked to the venue channel so patrons cannot accidentally retune during a service or performance.
• Up to 50 Hours Battery Life — Two AA alkaline batteries power each receiver for approximately 50 hours of operation.
• Hearing Aid Compatible — The 3.5 mm stereo/mono jack supports neckloops for telecoil-equipped hearing aids in addition to the included earphones.
• Battery-Saving Sleep Mode — Receivers enter sleep mode after about six minutes with no RF signal, extending battery life between events.
• Rechargeable-Ready Design — An internal battery-type switch and bottom charging contacts support a later upgrade to NiMH batteries and drop-in chargers.
• Lifetime PLUS Limited Warranty — The receivers are backed by the Williams AV Lifetime PLUS Limited Warranty for long service life in commercial venues.

Typical Applications

• Auditorium
• House of worship
• Government space
• Commercial meeting space
• Multi-purpose room
• Training room

Technical Specifications

Frequently Asked Questions

Do I need a transmitter for this bundle?

Yes. The R37 receivers require a transmitter operating in the 72-76 MHz band. They pair with any Williams Sound wideband FM transmitter, including the PPA T27, PPA T45, and PPA T46.

How does this bundle help with ADA compliance?

The 2010 ADA guidelines require venues with audio amplification to provide assistive listening receivers based on seating capacity, with a portion of receivers hearing aid compatible. The R37's neckloop-compatible 3.5 mm output supports telecoil coupling, and a 20-receiver inventory covers the receiver counts required for many mid-size to large assembly spaces.

Can these receivers be converted to rechargeable operation later?

Yes. Each receiver has a slide switch to select NiMH operation and bottom charging contacts for Williams Sound CHG 3502 or CHG 3512 drop-in chargers, so you can add BAT 026 NiMH batteries and chargers as your workflow evolves.

Will the receivers stay on the correct channel between events?

Channel-lock capability lets staff lock each receiver to the house frequency. Channel selection is performed via a seek button inside the battery compartment, out of reach of casual users.

What warranty and support apply?

The receivers carry the Williams AV Lifetime PLUS Limited Warranty, with 90 days on most accessories. Creation Networks supports commercial AV integrators and facilities teams with the full Williams AV line.