AT-HD577 ***Discontinued***

• • • Discontinued • • •

The Atlona Technologies AT-HD577 Audio De-Embedder is a great solution for isolating the audio from multiple HDMI sources. The AT-HD577 gives you the availability to remove the audio from your HDMI source so that you can re-route it to a secondary audio output device. The options you have for re-routing the audio is standard stereo (RCA) audio, digital coaxial, and optical. The AT-HD577 also offers 2×1 HDMI switching for easy access to your other HDMI sources.



Atlona Technologies AT-HD577 HDMI Audio De-Embedder offers the highest compatibility to HDMI 1.3 in the market. This unique device supports the separation of high quality audio from the incoming HDMI signal and make HDMI audio more friendly to your expensive audio systems. Plus, the high bit rate HDMI 1.3 data can be scaled down the color depth, which is compliant to HDMI 1.2 and DVI 1.1, to ease the limitation of the transmission distance and gain higher compatibility to the display without noticeable video degradation.One of the advantages of the AT-HD577 over the AT-HD570 it has replaced the 3.5mm ports with more conventional audio ports for easier connection to you home theater, or alternative audio sources. To broaden the spectrum of HDMI audio output, high quality 7.1 channel analog audio outputs and stereo S/PDIF in both Toslink and RCA connectors are seamlessly integrated in AT-HD577. The AT-HD577 is designed to enrich your full digital video and audio experiences at the least expense in a smoothest way. With built-in HDMI switch, it can serve as a 2×1 HDMI switch to easily switch between HDMI home theater systems and PC HDMI/DVI devices.


  • Silicon Image Chip-Sets allow 99.99% compatibility with all the AV gear (we only use the best chipsets and components)
  • HDMI 1.3c and HDCP compliant
  • 3D Capable
  • Built-in 2×1 HDMI switch
  • HDMI video supports up to 1080p@36 bit RGB/YCbCr
  • Maximum video output bus width 36-bit, no scaling
  • Loop through HDMI output
  • Supports LPCM 7.1/5.1/2 channels output through multi-channel output ports
  • Supports LPCM 2 channels output through optical fiber supports up to 44.1KHz or 88.2KHz
  • Supports CEC bypass in HDMI input A port and HDMI output port.
  • EDID learning ability to support all HDMI displays
  • Integrated HDMI Booster and Repeater

Technical Specifications

  • HDMI compliance: HDMI 1.3c
  • HDCP compliance: Yes
  • Video bandwidth: Single-link 225MHz (6.75Gbps)
  • Video Resolution support: 480i / 480p / 720p / 1080i / 1080p60 24/30/36-bit color
  • Audio support: 44.1KHz or 88.2KHz
  • Max. TMDS input clock: 225MHz
  • Max. output pixel clock: 165MHz
  • Input TMDS signal: 1.2 Volts (peak-to-peak)
  • Input DDC signal: 5 Volts (peak-to-peak, TTL)
  • Input: 2x HDMI (7.1ch audio & video)
  • Output: 1x HDMI (7.1ch audio and video)
  • 8x RCA analog (7.1ch audio)
  • 1x RCA (digital audio)
  • 1x Optical (digital audio)
  • HDMI connector: Type A (19-pin female)
  • RCA connector Red / White – individual channel of 7.1ch analog audio
    Yellow – Coaxial S/PDIF digital stereo audio
    Optical fiber connector TOSLINK (S/PDIF digital stereo audio)
  • DIP switch: For EDID selection


  • Housing: Metal enclosure
  • Dimensions Model:   223 x 82 x 40mm (8.8” x 3.2” x 1.6”) (LxWxH)              
  • Package: 330 x 200 x 95mm (1’1” x 7.9” x 3.7”)
  • Weight Model: 576g (1.3 lbs)
  • Package: 1000g (2.2 lbs)


Click below for Support details

AT-HD577 ***Discontinued***