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Peavey 4334427503 ALSR 72.1 Mhz Assisted Listening Receiver
Peavey 4334427503 ALSR 72.1 Mhz Assisted Listening Receiver
Peavey 4334427503 ALSR 72.1 Mhz Assisted Listening Receiver
Peavey 4334427503 ALSR 72.1 Mhz Assisted Listening Receiver
Peavey 4334427503 ALSR 72.1 Mhz Assisted Listening Receiver
Peavey

Peavey 4334427503 ALSR 72.1 Mhz Assisted Listening Receiver

★★★★★4.0 (21 reviews)

The Peavey ALSR 72.1 MHz receiver delivers clear assisted listening in a lightweight, battery-powered body pack with simple volume control.

$49.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Peavey ALSR 72.1 MHz Assisted Listening Receiver is a compact body pack designed for use in venues where audience members or participants need audio reinforcement delivered directly to their ears. Operating at a fixed 72.1 MHz within the FCC-designated 72–76 MHz hearing aid band, the receiver picks up transmissions from a compatible Peavey transmitter and outputs audio through the included mini binaural headphones via a standard 3.5mm jack. Frequency stability is maintained to within ±0.005% across a 0–50°C range, thanks to a phase loop synthesizer locked to a crystal reference, ensuring reliable reception without drift during events.

Weighing just 2.75 ounces (80g) without batteries and measuring 110 x 60 x 20 mm, the ALSR is unobtrusive enough to clip onto a belt or slip into a pocket. A single combination VOLUME/ON-OFF wheel keeps operation intuitive—there are no menus or multi-button interfaces to navigate. The unit runs on two standard AA batteries, delivering 17 to 20 hours of use with alkaline cells, which is sufficient for multi-day conferences or repeated church services between battery changes. A built-in squelch circuit mutes the output below 8–10 µV signal strength, reducing noise when the transmitter is out of range or powered off, while sensitivity of 2 µV for 12 dB SINAD ensures the receiver can pick up even weak signals in larger venues.

Specifications

Brand
Peavey
Model
ALSR (4334427503)
Frequency
72.1 MHz (72–76 MHz hearing aid band)
Frequency Stability
±0.005% over 0–50°C
Controls
VOLUME/ON-OFF combination wheel
Audio Output
250 mW max into 16Ω
Headphone Connector
3.5mm mini jack
Sensitivity
2 µV for 12 dB SINAD
Mute Threshold
8–10 µV, min. 50 dB S/N ratio
Power
2x AA batteries
Battery Life
17–20 hours (alkaline)
Dimensions
110 x 60 x 20 mm
Weight
2.75 oz (80g) without batteries
Included Accessories
Mini binaural headphones

Pros & Cons

👍 Pros

  • Long battery life of 17 to 20 hours on two standard AA batteries reduces the need for frequent changes during events
  • Very lightweight at only 2.75 oz without batteries, making it comfortable to wear for extended periods
  • Battery life of 17–20 hours on two AA batteries means it can last through multiple events without replacement
  • Crystal-referenced phase loop synthesizer ensures stable frequency reception with minimal drift
  • Compact, lightweight body pack at just 2.75 oz without batteries is comfortable to carry or clip on
  • Crystal-referenced phase loop synthesizer provides stable, drift-free frequency reception
  • Simple single-dial operation for power and volume makes it accessible for users of all ages
  • Combined volume and on/off control wheel provides simple, one-handed operation
  • Integrated squelch circuit automatically mutes output when the signal is too weak, preventing static bursts

👎 Cons

  • Operates on a single fixed frequency of 72.1 MHz with no ability to switch channels
  • Operates on a single fixed frequency of 72.1 MHz, offering no channel selection if interference is present
  • Requires a compatible Peavey transmitter that is not included, adding to the total system cost
  • Headphone cable doubles as the antenna, meaning reception quality can vary with cable positioning
  • The 3.5mm mini jack limits headphone compatibility to wired models only
  • The 3.5mm headphone output and included mini binaural headphones may not suit users who prefer custom earpieces
  • Audio output of 250 mW max into 16 ohms limits compatibility with higher-impedance headphones
  • Requires a compatible 72.1 MHz transmitter, which is sold separately

Frequently Asked Questions

The ALSR operates on a single frequency of 72.1 MHz within the 72–76 MHz hearing aid band, with frequency stability controlled by a phase loop synthesizer locked to a crystal reference for consistent reception.
With two AA alkaline batteries, the receiver provides approximately 17 to 20 hours of continuous use.
It comes with mini binaural headphones that connect via a 3.5mm mini jack. The headphone cable also serves as the antenna for receiving the signal.
The unit includes mini binaural headphones that connect via a 3.5mm mini jack. The headphone cable also functions as the receiver's antenna.
The receiver runs on two AA batteries and provides 17 to 20 hours of use with alkaline batteries, making it practical for extended events or multi-day use between battery changes.
It operates on 72.1 MHz within the 72–76 MHz hearing aid band, with frequency stability controlled by a phase loop synthesizer locked to a crystal reference for consistent reception.
It uses a single combination VOLUME/ON-OFF wheel, so turning the dial powers the unit on and adjusts the listening volume. An LED power indicator confirms when the unit is active.
The ALSR delivers a maximum audio output of 250 mW into 16 ohms, which is sufficient for clear listening through the included headphones in typical assisted listening environments.
The squelch circuit mutes audio when the received signal is too weak (below 8–10 µV), preventing static and noise from reaching the listener when the transmitter signal drops out.
Yes, the ALSR is a receiver body pack only. It is designed to work as part of Peavey's 72.1 MHz assisted listening system and requires a compatible transmitter, sold separately.

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