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  • AHB2 Power Amplifier Black

    Power Amplifier

  • HPA4 Headphone Amplifier Silver

    Headphone Amplifier

  • LA4 Line Amplifier Silver

    Line Amplifier

  • DAC3 Digital to Analog Converter Silver

    Digital to Analog Converters

  • 500-55088-102

    Benchmark Firmware Upgrade kit for HPA4 (Version 1.0.2 - Released 11/05/2018)

    Field-Installable Firmware Upgrade Kit for HPA4


      Kit includes:

      • Detailed instructions
      • Software chip
      • 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 Firmware Upgrade Instructions PDF  

      Note: The upgrade is not downloadable because it requires the installation of a memory module. Installation time is less than 10 min.

      ROHS and Pop 65 Statement Page