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Audio Interface



1 to 4 Channel Line Level Distribution Amplifier

DA-4 is an Audio Distribution Amplifier with one audio input and four audio outputs. It receives line-level audio signals from the Louroe microphone and distributes it to up to four receiving devices – VCR, NVR, video system monitors with amplifiers, or other audio devices that accept line-level input. Each input has an adjustable gain potentiometer for signal level. Maximum gain is 15dB.


  • 4-Channel audio distribution amp (1 input, 4 outputs)
  • Output gain (15db) – Volume potentiometer for each channel 1-4
  • Mix 1 line-level input audio signal or a (Line Level Microphone) to any combination of these devices (DVR/NVR, IP Camera, Base Station, etc.)
  • L.E.D. Power indicator
  • Connectivity up to 1000′ to other line-level hardware

Power and Cable Connectivity:

  • Requires 12Vdc external power, AD-1 (Included), DC Power Supply AD-1, LE-242, Click Here)
  • For long cable distances or making your own custom cable assemblies, use Belden 8451West Penn 452, or similar 1-2 conductor shielded cable for audio connectivity

Technical Design and Project Layout Support

Need help with using Louroes products/technologies in your projects and designs? Need us to look at Architectural Drawings and Plans? Our engineering staff can provide you with valuable information, and support to your business and employees by helping with all your projects/proposals. We will assist you from start to finish with cost-effective solutions for your success.

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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

1 x DA-4, 1 x AD-1, 5 x Single RCA Cables M-M (6ft.), 1 x Manual/Instructions

Installation Requirements

For long distance connectivity, use BELDEN 8451 or equivalent shielded audio cable.


  • All Louroe base stations
  • NVR


Use Cases


1 x rca female jack
4 x rca female jacks
Maximum Gain (Per Input)
Power Input:
AD-1, Plug-in 12Vdc, 1.5A Switching AC Adapter
Power Jack:
2.1mm x 5.5mm DC coax
Currnt Draw:
Power Indicator:
Green L.E.D.
6.125″ L x 4.625″ W x 1.375″ H
8 oz

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Have a question about the DA-4? 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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