4K/18G HDMI Fixer with L/R/PCM Audio & De-Embedded Audio Output

Key Digital


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4K/18G HDMI Fixer with L/R & PCM Audio De-Embed Output

Key Digital® KD-FIX418A is a 4K/18G HDMI connectivity repair and audio de-embedding solution which serves as an HDMI extension coupler, EDID handshake manager, and 18G to 10G down-converter when activating its various settings. Analog and digital audio de-embedding on 3.5mm stereo & PCM RCA connectors allow for integration of sources with no external audio connections into distributed audio systems, audio DSPs, amplifiers, or sound bars. KD-FIX418A supports all SD, HD, VESA and Ultra HD/4K video standards with HDR header information included in a variety of 4K EDID handshakes. Additionally KD-FIX418A can be controlled via RS-232 for implementing troubleshooting tools and collecting valuable troubleshooting connection data


  • HDMI Correction: Resolves common HDMI integration obstacles related to HDCP, EDID, Hot Plug Detection, and bandwidth
  • Compress/Decompress: Pair units to compress and decompress 18Gbps video signals and extend via legacy 10.2Gbps cabling
  • Boost Mode: High equalization option on HDMI input for repair of degraded incoming signals
  • Cabling Extension: Works with HDMI cabling for extension of 4K/UHD signals with HDR10 up to 75 ft / 23m in or out. Maximum one active/directional HDMI cable may be used.
  • 4K/UHD Support: 4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4(up to 18Gbps bandwidth)
  • HDR10 and Dolby Vision: More life-like images through a greater range of luminance levels
  • HDCP2.2: Compliancy up to HDCP 2.2 and backward compliant
  • Deep Color Support: Up to 4K/UHD 30Hz 4:4:4/12 bits or 60Hz 4:4:4/8 bit
  • Low Profile: Super compact chassis size
  • USB Powered: Low power consumption enables power from standard USB micro port
  • Full Buffer System™: Manages TMDS re-clocking / signal re-generation, HDCP source & display authentication, Hot Plug Management and EDID Control handshake
  • Lossless Compressed Digital Audio: Dolby® TrueHD, Dolby® Digital Plus, DTS-HD Master Audio™ and Dolby® Atmos
  • Auto-EQ: Precise signal equalization applied to input and output signals automatically delivers best possible picture quality
  • EDID Control: Internal library with 15 EDID handshakes including 4K with HDR in addition to native EDID data of output/display
  • Forced HPD: Enables integrator to choose if active signal voltage is forced to connected input device
  • CEC and ARC Pass-thru: Enables inter-device communication signals via CEC, ARC, and HDMI Ethernet channels