4K HDMI™ Audio Embedder (3.5mm, Optical)-HDA-4KMB
- Embed SPDIF or Analog Audio into HDMI
- Supports 4K@60Hz (4:4:4), HDR & HDCP 2.2
- Compatible with Dolby Atmos & DTS-HD MA
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High-Resolution HDMI™ Audio Embedding Solution
The HDA-4KMB is a high-performance HDMI™ audio embedder designed to seamlessly integrate external audio sources into an HDMI™ output. It allows embedding of digital optical (SPDIF) or analog stereo line-level audio, making it ideal for professional AV systems requiring flexible audio insertion without compromising video quality.
4K HDR Video & High-Bandwidth Performance
Built to support modern video standards, the HDA-4KMB handles resolutions up to 4K@60Hz (YUV 4:4:4) with full 18Gbps HDMI™ 2.0b bandwidth. It supports 10-bit HDR pass-through, ensuring compatibility with high dynamic range content while maintaining uncompressed video clarity and stable signal transmission across connected displays.
Advanced Multi-Format Audio Support
This embedder supports a wide range of audio formats including LPCM 2CH, Dolby Digital 2/5.1CH, and DTS 2/5.1CH via optical input, along with PCM 2.0 analog stereo embedding. It also passes through HDMI™ High Bit Rate (HBR) audio formats such as Dolby Atmos, Dolby TrueHD, and DTS-HD Master Audio, delivering immersive sound for high-end AV applications.
Compact Design with Professional Compatibility
Designed for both residential and commercial installations, the HDA-4KMB features a compact, reliable form factor that integrates easily into existing AV setups. With HDCP 2.2 compliance and CEC bypass support, it ensures smooth interoperability with protected content and connected devices, making it a dependable solution for home theaters, control rooms, and professional AV environments.
High-Resolution HDMI™ Audio Embedder with 4K HDR & Multi-Format Audio Support
Key Features:
- Audio Embedding – Embeds multi-channel digital optical (SPDIF) or analog stereo line audio into HDMI™ output.
- Optical Audio Support – Handles LPCM 2CH, Dolby Digital 2/5.1CH, and DTS 2/5.1CH formats.
- Analog Audio Support – Supports standard PCM 2.0 stereo analog audio embedding.
- 4K Video Resolution – Supports video resolutions up to 4K@60Hz (YUV 4:4:4) for stunning image quality.
- 18Gbps HDMI™ 2.0b Bandwidth – Delivers high-performance uncompressed video and audio signals.
- HDR Pass-through – Supports 10-bit HDR formats, including High Dynamic Range video content.
- High-Resolution Audio Pass-through – Supports advanced HDMI™ High Bit Rate (HBR) audio formats like Dolby Atmos, Dolby TrueHD, DTS-HD Master Audio, and more.
- HDCP 2.2 & CEC Bypass – Ensures content protection compatibility and seamless control integration.
- Compact & Reliable Design – Ideal for both residential and commercial AV environments.
The HDA-4KMB is a high-performance HDMI™ Audio Embedder designed to seamlessly integrate external audio signals into an HDMI™ output. It supports embedding audio from either a digital optical (SPDIF) source or Analog stereo line input, providing flexible audio integration options for various AV setups.
With full support for HDMI™ 2.0b and HDCP 2.2 standards, this device handles video resolutions up to 4K@60Hz (YUV 4:4:4) and passes through advanced video formats, including 10-bit HDR (High Dynamic Range).
It also supports high-resolution digital audio formats such as Dolby Atmos, Dolby TrueHD, DTS-HD Master Audio, and more, ensuring an immersive audio-visual experience. Ideal for home theater systems, commercial AV installations, and professional applications where audio integration with HDMI™ output is required, the HDA-4KMB offers reliable, high-quality performance in a compact design
Comparison Chart
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| Model Name | HDA-4KMB | HDA-912 | HDA-913 | HDA-915 | HDA-927 | HDA-934 | HDA-929 |
| Max. Resolution | 4K@60Hz | 4K@60Hz | 4K@60Hz | 4K@60Hz | 4K@60Hz | 4K@60Hz | 8K@60Hz / 4K@120Hz |
| Input Signal | HDMI, Optical (SPDIF), 3.5mm | HDMI | HDMI | HDMI | HDMI, ARC/eARC | 4x HDMI, ARC/eARC | HDMI eARC |
| Audio Output | HDMI | Optical (SPDIF), 3.5mm | Optical (SPDIF), RCA 2.0 | Optical (SPDIF), RCA | HDMI Audio | HDMI eARC (Soundbar) | HDMI eARC, Optical, 3.5mm |
| Dolby/DTS Downmix Decoder | Not Applicable | No | Yes | Yes | Not Applicable | Not Applicable | No |
| eARC Bridge - Dedicated eARC | ❌ | ❌ | ❌ | ❌ | ❌ | ✔️ | ✔️ |
| Best for | Embed Audio into HDMI | 4K to Optical / Analog | HDMI to RCA/Optical (Downmix) | ARC to RCA/Optical (Downmix) | 4K/eARC to Non-ARC HDMI AVR | eARC Output for Non-eARC TVs | 8K Gaming & eARC Systems |









HDA-4KMB User Manual Download