General / Mounts Stands
SIIG 04-1309B Audio Extractor and HDR to SDR Converter User Guide
Quick guide for the SIIG 04-1309B 1x4 HDMI 2.0a Splitter. Learn how to manage EDID, extract audio, perform HDR to SDR conversion, and configure downscaling settings.
Table of contents
Manual images
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The SIIG 04-1309B is a 1x4 HDMI 2.0a splitter designed for advanced signal management. It supports 4K@60Hz (4:4:4), HDCP 2.2/1.4, and HDR. Key features include audio extraction (PCM, Dolby, DTS), HDR to SDR conversion on output 4, and individual resolution downscaling for each output port.
Device Layout
The device features a power jack, micro-USB port for firmware updates, and various dip switches for configuration. Outputs include a 3.5mm stereo jack and a Toslink optical port for audio extraction. LED indicators provide status updates for power, signal, and output activity.
EDID Management
The EDID dip switch allows you to select between different resolution and audio profiles. To learn EDID from a connected display: set the dip switch to pin3 and pin4 in the down position, power on the device, and it will automatically learn the EDID from the display connected to output 1.
HDR to SDR Conversion
The HDR to SDR conversion function is available exclusively on output 4. It activates automatically when the source signal contains HDR content and the connected display does not support HDR.
Resolution Downscaling
The device supports downscaling from 4K to 1080p. You can configure this per output using the dedicated downscale dip switches. Note that 720p and 480p monitors are not supported. When the input source is 4K@60Hz, the output will be limited to 1080p@60Hz for 30Hz monitors.
AVR Mode
AVR mode enables support for advanced audio formats, including Dolby Atmos, Dolby TrueHD, and DTS-HD Master Audio. Note that EDID learning cannot support Dolby Vision and Atmos simultaneously.
Support
For technical assistance, visit the official support page at http://www.siig.com/support
Official resources from the manual
Manufacturer information
SIIG, Inc.
Practical help
Common problems
HDR to SDR conversion not working
Ensure the source signal is HDR and the connected display on output 4 does not support HDR.
4K to 1080p downscaling issues
Verify that the monitor is not a 720p or 480p model, as these are not supported.
EDID settings not applying
You must power cycle the device after changing the EDID dip switch settings.
Before use
- Ensure the power adapter (DC 5V/2A) is connected.
- Verify that your HDMI cables support 18Gbps bandwidth for 4K@60Hz.
- Check if your display supports HDR if you intend to use it.
- Set the EDID dip switches according to your display's capabilities.
Images and diagrams
- Pin 1-2 on the rear panel control firmware and HDR to SDR settings.
- Pin 1-4 on the front panel control individual output downscaling.
- LEDs 1-4 indicate signal status for each HDMI output.
Model compatibility
- Does not support frame rate conversion.
- Does not support 720p or 480p monitors.
- HDR to SDR conversion is limited to output 4 only.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.