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FM R37 Receiver with Headphones

Last updated Nov 1, 2026 · 3 entries in Page history

The PPA R37 HD is a body-pack FM receiver with seek-button access to 17 wideband frequencies in the 72-76 MHz band. It comes with a HED 021 headphone, AA alkaline batteries and a belt clip.

Part number or model
PPA R37 HD
Catalog number
Not assigned yet
Searched on PriceQ as
“Williams Sound PPA R37 HD Receiver”
Williams AV PPA R37 HD: the R37 receiver with the HED 021 headphone

Specifications

40 fields, as the sources state them

FM R37 Receiver with Headphones

FM R37 Receiver with Headphones
The R37 FM Receiver with a HED 021 headphone features seek-button channel selection with access to 17 pre-set, wideband frequencies reserved for hearing assistance by the ADA. The receiver is compatible with all Williams Sound 72-76 MHz wide-band transmitters.1

NOTE

NOTE
The Receiver requires a transmitter operating on 72-76 MHz. The Receiver is approved by the FCC for operation in U.S. Markets. The receiver cannot be used in all countries. Check with your government´s radio regulations for 72-76 MHz operation.1

Description

Description
The R37’s audio is digitally synthesized for exceptional audio clarity and stability. Versatile 3.5mm stereo/mono jack allows for various earphone/headphone options and is neck loop/telecoil-equipped hearing aid compatible. The FM R37 offers sleep mode, a low-battery indicator, and a stereo headphone jack.1

System Includes

System Includes
(1) PPA R37N Receiver (1) BAT 001-2 AA Alkaline Batteries (1) HED 021 headphone *All items can be purchased separately1

Can also be ordered as

Can also be ordered as
PPA R37N: Receiver and Belt Clip (CLP 023) (No batteries or earphones) PPA R37-00: Receiver, batteries (BAT 001-2) and Belt Clip (CLP 023) (No earphones) PPA R37 HD: Receiver, batteries (BAT 001-2), Belt Clip (CLP 023) and headphones (HED 021)1

Features

Features
Seek-button access to all 17 wideband frequencies in the 72-76 MHz bandwidth Channel-lock capability Battery-saving sleep mode Low-battery indicator Field tunable1

PPA R37 HD architectural and engineering specifications

PPA R37 HD architectural and engineering specifications
The PPA R37 receiver shall be encased in black, PC/ABS impact-resistant plastic with a hinged battery door. The receiver shall be a body-pack style and include a detachable belt-clip for hands-free operation. The receiver shall have a 3.5mm stereo/mono jack to accommodate stereo or mono low impedance earphones, headphones and neckloops. The receiver shall have a combination volume control with power on/off rotator dial. It shall have a green LED indicating battery and system status codes. The R37 shall have access to 17 preset wideband channels between 72-76MHz. Channel selection shall be made by pushing the seek button inside the battery compartment. The receiver shall have channel-lock capability. The receiver shall have a slide switch inside the battery compartment to select disposable Alkaline or NiMH rechargeable battery operation. It shall have charger contacts on the bottom of the receiver for use with Williams Sound drop-in chargers CHG 3512 and CHG 3502. The R37 shall operate up to 50 hours with two disposable AA Alkaline batteries and up to 32 hours with two AA NiMH rechargeable batteries (BAT 026). The receiver shall provide a maximum out of 35mW at 16ø with an earbud type earphone. The systems audio frequency response shall be 200Hz to 15kHz ± 3dB and the signal to noise ratio shall be 65dB min. The receiver sensitivity shall be 2μV or better at 12dB Sinad with squelch defeated. The R37 shall accept up to ±75kHz FM deviation and have a 75 μ s de-emphasis time constant. The R37 shall have FCC, Industry Canada approvals and be compliant with RoHS and WEEE regulations. The receiver shall be covered by a Lifetime PLUS Limited Warranty, excluding earphones, headphones and batteries. This receiver model shall be the Williams Sound model PPA R37.1

PPA R37 HD

PPA R37 HD: Dimensions
4.1″ x 2.85″ x 1.38″ (104 x 72 x 35mm)1
Weight
4.6oz (130g) with batteries. 2.6oz (73g) without batteries1
Color
Black1
PPA R37 HD: Battery Type
(2) AA Alkaline or 2 x AA NiMH1
Battery Life
Two (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 50 hrs (2) AA rechargeable NiMH batteries (BAT 026), 1500 mAh, approx. 32 hrs1
Current Consumption
52mA nominal1
Temperature Range
– 0 to 50C1
Channels
17, accessed via seek button in battery compartment1
Operating Freq.
72.1, 72.2, 72.3, 72.4, 72.5, 72.6, 72.7, 72.8, 72.9, 74.7, 75.3, 75.4, 75.5, 75.6, 75.7, 75.8, 75.9 MHz*1
Intermediate Freq.
75 kHz1
FM Deviation
75 kHz1
De-Emphasis
75 µS1
LED Indicator
Power: Green; Low Battery: Flashes Green1
AFC Range
± 120 kHz1
Sensitivity
2 µV at 12 dB Sinad with squelch defeated1
Input Overload
100 mV1
Frequency Response
200 – 15 kHz1
Modulation
FM, +/- 75 kHz peak deviation1
Signal-to-Noise Ratio
65 dB min @ 100 uV1
Receive Antenna
Integral with earphone/headphone cord1
Audio Output
35 mW max, peak into 16 ohms1
PPA R37 HD: Output Connector
3.5 mm stereo/mono phone jack1
Earphone
Earbud-type with foam cushion, 3.5 mm plug, 32 Ω1
Auto Shut-off
Enters sleep mode after approx 6 mins of no RF signal1
Approvals
FCC, Industry Canada, RoHS, WEEE1
PPA R37 HD: Warranty
Lifetime PLUS Limited Warranty, 90 Days on most accessories.1

Warranty

Warranty
Lifetime PLUS Limited1

PPA Select FM Receiver

PPA Select FM Receiver
The PPA Select FM receiver features easy-to-use, seek-button channel selection with access to 17 pre-set wideband frequencies between 72-76 MHz. Digitally synthesized for even greater audio clarity and stability, the PPA Select also offers channel-lock capability (to prevent accidental channel change) and a battery-saving Sleep Mode. A versatile 3.5mm stereo/mono jack allows for a variety of earphone and headphone options, and is neckloop/telecoil-equipped-hearing-aid compatible. The stylish, impact-resistant PPA Select single-channel receiver is compatible with any Williams AV Personal PA transmitter operating on the 72-76 MHz bandwidth. The PPA Select includes two AA alkaline batteries for up to 50 hours of long-lasting operation.2

SPECIFICATION DATA

SPECIFICATION DATA
Houses of Worship • Schools • Auditoriums • Conference Rooms • Theaters2

System Specifications

System Specifications: Dimensions
4.1" H x 2.85" W x 1.38" D (104 mm x 72 mm x 35 mm)3
System Specifications: Battery Type
Two (2) AA non-rechargeable alkaline batteries (BAT 001-2), approx. 48 hours battery life; or Two (2) AA rechargeable NiMH batteries (BAT 026-2), 1500 mAh, approx. 30 hours battery life.3
Indicators
Power on: Bright Green. Low Battery: Flashes.3
System Specifications: Output Connector
3.5 mm stereo phone jack, accepts either stereo or mono plug3

Sources: williamsav.com, Title block, Description, specs, Documentation and Related products tabs, read Nov 1, 2026 UTC; williamsav.com, PPA Select FM Receiver specification data, MCAT 098E, first page, read Nov 1, 2026 UTC; williamsav.com, System Specifications, PPA Select Receiver, read Nov 1, 2026 UTC.

Size and weight

Inches and pounds, millimetres and kilograms

The product

WhatInches and poundsMillimetres and kilograms
DimensionsH4.1×W2.85×D1.38 inH104×W72×D35 mm
WeightWith batteries4.6 oz0.288 lbconverted130 g0.13 kgconverted
WeightWithout batteries2.6 oz0.163 lbconverted73 g0.073 kgconverted

Figures in black are the maker’s. Figures in grey are converted by the wiki (1 in = 25.4 mm, 1 lb = 0.45359237 kg).

Compare with

11 of the same family on the wiki

More from Williams AV

6 pages on the wiki

All 6 Williams AV pages →

Documents

4 linked, none copied here

References

5 sources, each with the day it was read

  1. williamsav.com, Title block, Description, specs, Documentation and Related products tabs, read Nov 1, 2026 UTC. Supports 34 specifications, the related products, the documents
  2. williamsav.com, PPA Select FM Receiver specification data, MCAT 098E, first page, read Nov 1, 2026 UTC. Supports 2 specifications
  3. williamsav.com, System Specifications, PPA Select Receiver, read Nov 1, 2026 UTC. Supports 4 specifications
  4. williamsav.com, Title block and System Includes, read Nov 1, 2026 UTC. Supports the related products
  5. williamsav.com, Title block and System Includes, read Nov 1, 2026 UTC. Supports the related products

Page history

Every read and every change to this page, newest first

  1. Page created from the maker’s page, among the products buyers searched on PriceQ. Product type proposed. Descriptions written at three lengths from the specifications.Claude Opus (AI agent) · Not reviewed yet
  2. Read on williamsav.com: Title block and System Includes.Claude Opus (AI agent) · Not reviewed yet
  3. Read on williamsav.com: Title block, Description, specs, Documentation and Related products tabs; PPA Select FM Receiver specification data, MCAT 098E, first page; System Specifications, PPA Select Receiver.Claude Opus (AI agent) · Not reviewed yet

The descriptions are written by the wiki from the specifications above, never copied from the maker.

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