4K60 4:4:4 4×4 HDMI Matrix with Independent Per-Output Scaling
Route One Rack to 4K and Legacy 1080p Screens at Once — Dual Audio De-embedding, ARC & 18Gbps HDR
Routes any of four HDMI 2.0 sources to four displays and scales each output independently, so a 4K60 main and a legacy 1080p overflow screen both run clean from the same box. The matrix ships in a compact metal enclosure — 8.66" wide and 1.73" high, with mounting ears supplied — and draws 10W from a locking 12V/2.5A supply, putting a full 4×4 18Gbps routing and scaling engine on a single shelf. It is the right choice for conference rooms, houses of worship, sports bars and media rooms where mixed-resolution displays and a separate audio zone matter more than paying pro-tier matrix prices.
Every output de-embeds audio to both a 3.5mm analog L/R jack and an RCA coaxial port, and ARC returns a display's audio to the coaxial output — feeding a zone amp, soundbar or DSP without an AVR upgrade. It passes 4K60 4:4:4 at the full 18Gbps with HDR10, HDR10+, Dolby Vision and HLG, carries advanced EDID management, and is controllable over RS-232 or TCP/IP with a built-in Web GUI, IR remote and front panel. Its differentiator is coverage: dual analog-and-coax de-embed with ARC return and independent 4K to 1080p scaling on all four outputs, a feature set otherwise found only on matrices costing several times more.
- HDMI 2.0, HDCP 2.2 / HDCP 1.4 and DVI 1.0 compliant
- Video resolution up to 4K2K@60Hz (YUV 4:4:4)
- Supports 18Gbps video bandwidth
- Four outputs can be individually scaled (4K to 1080p)
- De-embedded audio to analog L/R and coaxial port outputs
- ARC audio return on the coaxial output only
- Built-in Web GUI for TCP/IP control
- Advanced EDID management supported
- Four methods of control: front panel, RS-232, IR remote and TCP/IP
- Compact design for easy and flexible installation
Transcript
Hi, I'm Eric from KanexPro. This is our four by four HDMI matrix: any of four sources to any of four displays, at 4K60 4:4:4. Each output scales on its own, so a 4K screen and a 1080p screen run side by side. And every output breaks out its audio, on coax and on a 3.5 millimeter L/R jack. Here's how it connects. Sources plug into the HDMI inputs: a PC, a Blu-ray, a cable box and a media player. The four displays each pick their own source, from the front panel, the remote, or the web page. Set an output to 1080p, and an older TV on the patio still gets a clean picture. The supplied 12 volt adapter powers it. Next, audio and control. Each output's audio comes out on coax, here to an amplifier, and on L/R, here to powered speakers. Turn on ARC, and a TV's own sound comes back to that output's coax. A PC opens the web page, a control system connects on RS-232, and IR EXT takes a receiver cable. Built for screens that each need their own source. Sports bars: a different game on every TV. Homes: every room's TV picks its own source. Schools: four classrooms, each on its own source. Houses of worship: each screen on its own feed. Now, the key features. Four by four: any source to any display. Scaling on every output: 4K to 1080p, each on its own. 4K60 4:4:4 at 18 gigabits, with HDR10+, Dolby Vision and HLG. Audio out on every output: coax, and a 3.5 millimeter L/R jack. ARC: a TV's own sound comes back to its output's coax. For integrators: a web page over TCP/IP, RS-232, IR, and EDID management. Spec it wherever four screens each need their own source. Thanks for watching. I'm Eric from KanexPro. See you next time.
| Video | |
| HDMI Compliance | HDMI 2.0 |
| HDCP Compliance | HDCP 2.2 and HDCP 1.4 |
| Video Resolution | 4K2K 50/60Hz 4:4:4; 4K2K 50/60Hz 4:2:0; 4K2K 30Hz 4:4:4; 1080p, 1080i, 720p, 720i, 480p, 480i; all HDMI 3D TV formats; all PC resolutions including 1920 × 1200 |
| Color Space | RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8-bit, 10-bit, 12-bit [1080p, 4K30Hz, 4K60Hz (YCbCr 4:2:0)]; 8-bit [4K60Hz (YCbCr 4:4:4)] |
| Video Bandwidth | 18Gbps |
| Output Scaling | 4K to 1080p (Bypass / 4K to 1080p / Auto) |
| 3D Support | Yes |
| HDR Support | HDR10, HDR10+, Dolby Vision, HLG |
| ESD Protection | Human-body model: ±8kV (air-gap discharge), ±4kV (contact discharge) |
| Audio | |
| HDMI Audio Formats | PCM 2.0/5.1/7.1CH, Dolby Digital/Plus/EX, Dolby TrueHD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD |
| Coaxial Audio Formats | PCM 2.0, Dolby Digital/Plus, DTS 2.0/5.1 |
| L/R Audio Formats | PCM 2.0CH |
| ARC | Return on coaxial output only |
| Connections | |
| Input Ports | 4 × HDMI Type A (19-pin female) |
| Output Ports | 4 × HDMI Type A (19-pin female); 4 × L/R audio out (3.5mm stereo mini-jack); 4 × coaxial audio out (RCA) |
| Control Ports | 1 × TCP/IP (RJ45); 1 × RS-232 (3-pin phoenix connector); 1 × IR EXT (3.5mm stereo mini-jack) |
| Power | |
| Power Supply | Input: AC 100–240V 50/60Hz; Output: DC 12V/2.5A (locking connector) |
| Power Consumption | 10W (max); 1.56W (standby) |
| Physical | |
| Housing | Metal enclosure |
| Color | Black |
| Dimensions (unit) | 8.66" (W) × 4.13" (D) × 1.73" (H) — 220 × 105 × 44 mm |
| Weight (unit, net) | 1.75 lbs (0.79 kg / 792 g) |
| Environmental | |
| Operating Temperature | 32°F – 104°F (0°C – 40°C) |
| Storage Temperature | -4°F – 140°F (-20°C – 60°C) |
| Relative Humidity | 20–90% RH (non-condensing) |
| Package Contents | |
| 4×4 HDMI 4K 18Gbps Matrix | 1 |
| 12V/2.5A locking power adapter | 1 |
| IR remote | 1 |
| Mounting ears | 2 |
| 38kHz IR receiver cable (1.5 m) | 1 |
| 3-pin / 3.81mm phoenix connector | 1 |
| Machine screws (KM3×4) | 4 |
How much power does the MMX-4X4AUD draw?
What color depth does the MMX-4X4AUD carry at 4K60 4:4:4?
Can the MMX-4X4AUD manage connected displays directly?
How can the MMX-4X4AUD be controlled?
How do I set up my PC to reach the MMX-4X4AUD Web GUI?
How is the MMX-4X4AUD powered?
I cannot open the MMX-4X4AUD Web GUI in my browser. What should I check?
My 1080p display shows nothing from a 4K source on the MMX-4X4AUD. What should I check?
Can I send audio to a separate sound system without upgrading to an AVR?
Does it support ARC from a smart TV?
Ask Claude, ChatGPT or Copilot about the MMX-4X4AUD: its specifications, your price, stock, and a draft order for you to place. Or wire the REST API into your quoting tool or ERP.