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  • AHB2 Power Amplifier Black

    Power Amplifier

  • HPA4 Headphone Amplifier Silver

    Headphone Amplifier

  • LA4 Line Amplifier Silver

    Line Amplifier

  • Digital to Analog Converters

  • 500-17000-000

    Benchmark Software Upgrade Tool Kit for LA4/HPA4

    Field Software Upgrade Kit for LA4 / HPA4


    Please note the software upgrade is FREE.

    The tool kit is only necessary if you do not have the items listed below already. 

      Kit includes:

      USB Cable - Type A to Micro
      T-15 pin-in-head security tool
      • USB Type A to Micro cable (for connecting to internal update port)
      • T-15 Pin-In-Head Security Tool (for cover removal)

      International Customers:

      If you are located in a country served by our distributor network, you may not be able to order directly from our store. If the checkout option is not available, you will need to  call or email our customer service department to order your kit. 


      HPA4/LA4 Software Update Instructions PDF  


      ROHS and Pop 65 Statement Page