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Audio Monitoring Kits
Audio Monitoring Kits

ASK-4® #371


The ASK-4® #371 is a two-way talk and listen single zone audio monitoring system. This system is designed to tap PoE power and provide two-way communication through the IP camera’s video management software. The IF-PX is an audio-oriented, single zone power over Ethernet extractor that extracts power from an Ethernet connection to power Louroe’s one-way or two-way audio solutions.

The PoE Extractor interfaces with Louroe speaker microphones, microphones and other external devices that require a 12 Vdc supply such as system accessories and non PoE cameras. The IF-PX also permits audio and video equipment to be powered by a single run of CAT5, CAT5e or CAT6 cable. The IF-PX enhances the functionality of audio security systems by eliminating the need for a power supply. It also provides seamless installation with 15W PoE (802.3af) standards and easy integration with IP cameras. The AOP-550 is a ceiling mount self-amplified speaker/microphone designed to connect to a NVR or PC soundcard.


  • Single zone Power over Ethernet (PoE) extractor
  • Line level audio in & out (3.5mm jacks)
  • Adjustable gain potentiometer
  • Low-profile for ease of installation
  • Durable, powder coated extruded aluminum housing


  • Omni-directional microphone, within 30′ diameter circle
  • 4″ Speaker
  • Full Duplex
  • Can be placed up to 1000′ away from the base station
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5-Year warranty
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Audio Monitoring Notice

When this equipment is used as part of an audio monitoring system, the law requires that the public be given notice of AUDIO MONITORING ON THE PREMISES.
Two decal notices are included with each microphone shipped.

Federal Law References: Federal Regulations, US Code, Title 18, Crime and Criminal Procedure. Sec 2510.


What's in the box

AOP-550, IF-PX, (2) 3.5mm Stereo Cable (6ft.)

Installation Requirements



  • Encoders
  • IP Cameras
  • NVR


Adapter Ethernet Connectors
RJ45 CAT 5 Input and Output Jacks
Adapter Connectors
RJ-45, DC Jack,
Terminal Block for Mic/Speaker
3.5mm Stereo Jacks for Audio IN/OUT
Adapter Dimensions
6”L x 3 1/2”W x 2 1/8”H
Adapter Weight
Speaker Type
Electret Condenser
Speaker Audio Output
Line Level (0 dB 600Ω) unbalanced
Speaker Dimensions
Speaker Weight
2 Lbs 12 oz

Product Comparison

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3’ Dropdown Mic Cable
6” Mic Element Assembly
Adjustable Gain Potentiometer
Audio Adapter Included
Audio Streaming
Audio Type
Base Station Included
Base Station Speaker Size
Built-in Preamp
Headphone Jack for Private Listening
Included Speaker Size
Install Environment
Mic Form Factor
Mic Type
Microphones in Kit
Mute Button
Mute Switch Included
Number of Zones
Pick-up Pattern
Pick-up Range
Playback Audio
Power Supply Included
Rack Mount Included
Requires Two-Way Base Station
Sensitivity Switch: Normal/Low
Speaker/Mics in Kit
Vandal Resistant
Voltage Requirement
Wire Distance
Wire Type

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Inquire About This Product

Have a question about the ASK-4® #371? Contact us directly.
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How to Buy

United States and Canada
Louroe sells products through a network of dealers and distributors across the United States and Canada. Find your local Louroe Distributor on the locator portal.
  Find a distributor
Latin America
Please contact LAR Group, the Louroe representative group for Latin America including the Caribbean.
  Contact LAR Group
Other Worldwide Regions
For regions outside of North America, Latin America and the Caribbean, please contact Louroe directly at (888) 265-8474 or via email on our contact form.
  Contact Us
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