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Small black box with HDMI, optical and four 3.5 mm jacks

Techly

Techly IDATA HDMI-EA74K Audio Extractor 7.1 LPCM 4K UHD 3D

SKU CH-H8CG-X484T

Extracts HDMI audio to optical and four 3.5 mm analog channels while passing 4K 3D video up to 9 Gbps bandwidth

  • TypeAudio Extractor
  • ColorBlack
  • SpecificationsVideo bandwidth: 300Mbps / 9Gbps Input ports: 1 x HDMI Outpu
  • Connector A1 x HDMI
  • Connector B1 x HDMI 1 x Optical 4 x 3.5 Phone Jack
  • AudioYes
  • Extracts audio from HDMI sources to optical and analogue outputs
  • Supports 7.1-channel LPCM and 5.1-channel Dolby Digital or DTS
  • Handles 4K UHD and 3D video at 300Mbps / 9Gbps bandwidth
  • Provides four 3.5mm jacks for multi-channel analogue sound
  • Includes 5V 2A power supply for immediate operation

7.1-Channel HDMI Audio Extractor

The Techly IDATA HDMI-EA74K extracts audio from an HDMI source and delivers it through optical S/PDIF and four 3.5 mm analogue outputs. It supports LPCM 7.1, Dolby Digital, DTS and high-bit-rate audio formats up to 192 kHz sampling. The unit passes 4K UHD and 3D video through its HDMI output while meeting HDCP 1.2 and DVI 1.0 compliance. A 5 V 2 A power supply is included.

HDMI Source and Display Compatibility

Verify that your source device can output audio in LPCM 2.0, 5.1 or 7.1 channels, or in the supported Dolby and DTS bitstream formats listed in the specifications. The extractor does not decode audio from an HDMI input that carries only compressed formats not listed, so check the source audio settings before connecting. Your display or projector must accept the 4Kx2K video signal passed through the HDMI output without alteration. Ensure the HDMI cables used support the required 9 Gbps bandwidth for 4K resolution.

Passive Cooling and Low Power Draw

The extractor operates without fans, relying on its metal enclosure for silent heat dissipation during normal use. Power consumption is limited to the included 5 V 2 A supply, so the unit adds negligible load to a standard mains socket. No audible noise is produced, making it suitable for quiet living-room or studio environments.

Highlights

  • Extracts audio from HDMI sources to optical and analogue outputs
  • Supports 7.1-channel LPCM and 5.1-channel Dolby Digital or DTS
  • Handles 4K UHD and 3D video at 300Mbps / 9Gbps bandwidth
  • Provides four 3.5mm jacks for multi-channel analogue sound
  • Includes 5V 2A power supply for immediate operation

Specifications

BrandTechly
ModelIDATA HDMI-EA74K
TypeAudio Extractor
ColorBlack
SpecificationsVideo bandwidth: 300Mbps / 9Gbps
Input ports: 1 x HDMI
Output Ports: 1 x HDMI, 1 x Optical, 4 x 3.5 "Phone Jack
HDMI Audio sampling frequency up to 192kHz
SPDIF Optical Audio sampling frequency up to 192 kHz
HDMI Audio format: LPCM 2 / 5.1 / 7.1CH, 5.1CH Dolby Digital 2 ~, ~ 2 5.1CH DTS, Dolby Digital Plus, Dolby TrueHD, and DTS-HD Master Audio
Optical Format Audio: 2CH LPCM, Dolby Digital 5.1 CH 2 ~, ~ 2 and DTS 5.1CH
Audio Format L / R: 4 x output Phone Jack format; 7.1 CH Analogue Audio
Power supply included 5V 2A
Connector A1 x HDMI
Connector B1 x HDMI
1 x Optical
4 x 3.5 Phone Jack
AudioYes
FeaturesIt extracts the audio signal from an HDMI source
Supports HDMI audio sampling rates up to 192kHz
Supports optical audio sampling rate S / PDIF audio up to 192kHz
Supports 4 outputs 3.5 multi-channel analog audio
Allows 4Kx2K resolutions and 3D reproductions
Meets HDMI, HDCP 1.2 and DVI 1.0
Supports audio HDMI high-bit-rate (HBR)
No HDMI connections for receiving audio on analog and optical outputs
Incoming and outgoing can use HDMI cables up to 15 meters in length 1080p 8bit resolution, or 10m to 1080p 12bit
Supports audio feature EDID between LPCM 7.1CH, TV EDID (external) and Audio
Package ContentsAudio Extractor IDATA HDMI-EA74K
Power supply 5V 2A
Information Sheet

Questions about this item

Does the box include everything needed to connect the extractor, or do I need to buy any cables or adapters separately?

The package contains the IDATA HDMI-EA74K extractor, a 5V 2A power supply and an information sheet. HDMI, optical or 3.5 mm cables are not included and must be purchased separately.

Which audio output should I choose between the optical port and the four 3.5 mm jacks for 7.1 channel LPCM?

The four 3.5 mm jacks deliver 7.1 channel analogue audio, while the optical port is limited to 2-channel LPCM or 5.1 channel Dolby Digital and DTS. Choose the analogue outputs for full 7.1 LPCM.

What does the 9 Gbps video bandwidth mean when I connect a 4K UHD source to my display through this extractor?

The 9 Gbps bandwidth supports 4Kx2K resolution and 3D video pass-through while meeting HDMI, HDCP 1.2 and DVI 1.0 standards, so the video signal reaches the display unchanged.

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