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Audio Authority 2124

4-input SD Video/Audio Source Card for HLX

Audio Authority 2124 4-input SD Video/Audio Source Card for HLX

Audio Authority 2124 4-input SD Video/Audio Source Card for HLX

Use this Audio Authority 2124
4-input SD Video/Audio Source Card to expand the capacity of an HLX Matrix Distribution System.

This card provides S-Video, Composite video (BNC or RCA), coaxial digital audio and analog stereo audio inputs as well as IR control for up to four A/V sources.

On-board scaling converts SD sources to 480p making it simple to integrate standard definition sources, such as security cameras, DVRs and VCRs with a high-definition HLX distribution matrix system.  Audio inputs can be switched separately from video inputs for maximum flexibility.

Please see the HLX System page for more information.

Like most Audio Authority products, the 2124 comes with a one year limited warranty from the manufacturer.

Audio Authority's Description

SD Source Card for HLX Modular Matrix

Model 2424

  • Four standard definition source inputs
  • Scales 480i to 480p (Component Video, YPbPr)
  • Composite, BNC, and S-Video inputs
  • Analog and digital audio inputs
  • IR output for source control
  • Switch audio and video independently


Composite Video Sources

The 2124 is ideal for connecting security cameras and other standard definition sources to your HD network. The 2124 scales SD sources from 480i to 480p for optimal viewing on HDTV displays.

How to use the 2124

The 2124 may be used with other types of source cards in an HLX card cage, or up to three 2124 cards can be installed for a total of 12 Composite Video sources in one HLX system. The audio inputs are useful for AV sources such as VCRs and cameras, but can also be used as independent, audio-only source inputs for MP3, CD, or other audio sources. When switched independently, the 2124 can be used to add four video sources plus four audio sources to any HLX system.

How to Order

Order the 2124 as part of a custom HLX Modular Matrix. Call your Audio Authority Account Manager with questions or to order your custom HLX configuration.

[Editor's Note: the 2124 may also be ordered separately for upgrading existing HLX systems - just Add to Cart below or contact Cable Solutions for assistance]


  • Accepts 480i signals from composite, BNC, or S-Video ports
  • Four video inputs
  • Four audio inputs (can be switched independently)
  • IR jack for source control signals


Video Parameters

  • Video Input Format: 480i (Composite Video and S-Video)
  • Video Output Format: 480p (Component Video)
  • Input/Output Impedance: 75 ohms
  • Input Ground Isolation: No
  • Gain: 1
  • Gain Accuracy: 2%
  • 3dB Bandwidth: 150MHz
  • Input Coupling: AC
  • S/N Ratio: 61dB
  • Max Gain/Equalization: 1.00 gain

Audio Parameters

  • Input Impedance: 75 ohms/50K ohms
  • Min Load Impedance: 75 ohms/10K ohms
  • Multi-channel Digital: Yes
  • Frequency Response: 10-50KHz
  • S/N Ratio: 72dB
  • THD+Noise: 0.03%
  • Crosstalk: 75dB


  • Connector Types (Input): RCA (Composite Video, analog audio, digital audio), DIN (S-Video), BNC (Composite Video)
  • Connector Types (Output): 3.5mm (IR)
  • Agency Approvals: ETL, FCC
  • Heat Output: 62 BTU/hr

In the Box

  • Model 2124 Card
  • 2124 User Manual



  • User Manual: 2124 (.pdf)
Audio Authority 2124 4-input SD Video/Audio Source Card for HLX, close-up view

This close-up view shows the right side of the 2124 card's input panel in greater detail.

Audio Authority 2124 4-input SD Video/Audio Source Card for HLX, right-front view

Shown here is another view of the  2124 4-input SD Video/Audio Source Card.

Audio Authority HLX Series focus sheet - click to download PDF

This focus sheet offers a general overview of the HLX System.  Click to download in PDF format.

Audio Authority 2124 manual - click to download PDF

Audio Authority 2124 4-input SD Video/Audio Source Card Installation and Operation Manual - Click to download in PDF format.

Audio Authority HLX Series Manual - click to download PDF

Here is the HLX installation manual.  Click to download in PDF format.

Purchase Information
Pre-Configured Systems SKU MSRP Your Price Quantity
4-input SD Video/Audio Source Card for HLX 2124 $1199.00 $1079.10
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Why Cable Solutions?

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