Kystar KBS1000: ten-port LED sending with 4K input
The Kystar KBS1000 is an LED display sending controller with ten Gigabit Ethernet outputs and a total load of up to 6.5 million LED pixels. It accepts one HDMI 2.0 input up to 4096 × 2160 at 60Hz and two DVI inputs up to 2048 × 1152 at 60Hz. These input specifications are separate from the LED screen’s output pixel budget.
In a Kystar control system, the KBS1000 connects the video source to a compatible receiving-card network. It supports rental and fixed installations that need high pixel capacity, calibration tools and coordinated configuration across multiple sending controllers.
Model-specific specifications
| Specification | Details |
|---|---|
| Ethernet outputs | 10 Gigabit ports; hot-backup support |
| Total LED load | Up to 6,500,000 pixels |
| Per-output load | Up to 650,000 pixels |
| HDMI input | 1 × HDMI 2.0; up to 4096 × 2160 at 60Hz |
| DVI inputs | 2; up to 2048 × 1152 at 60Hz |
| Output dimension limits | Width or height up to 8,000 pixels, within the pixel budget |
| HDMI loop output | Loops the HDMI input; up to 8 units in the documented cascade |
| Configuration connections | USB-IN and 2 × CFG-1G; ETH-100M for central-control connection |
| Audio input | 3.5mm AUDIO-IN |
| 3D connection | 3D-SYNC output; compatible transmitter and glasses required |
| Special-mode limitations | 3D halves LED load; the retained specification limits spherical processing to 8 output ports |
Calibration and coordinated setup
- EDID management: configure the source signal within the documented resolution and pixel-count limits.
- Passive calibration: work with the Kystar calibration system without a video source during the calibration process.
- Calibration-data delivery: use supported Kystar data transfer for screen correction workflows.
- Cascade control: connect compatible units for unified setup; the specification lists a maximum of eight units.
- Brightness and color temperature: adjust the screen output to suit the configured display.
Choose by output load and the required mode
A 3840 × 2160 input contains 8,294,400 pixels, more than the KBS1000’s 6.5-million-pixel LED output budget. Accepting a 4K signal does not allow this unit to drive a full native 3840 × 2160 LED canvas. A 3200 × 2000 canvas contains 6,400,000 pixels and falls below the total limit, but each output and receiving-card chain must also fit its own capacity.
The maximum width and height are separate dimensional constraints; they cannot both be used at once as a fully loaded 8000 × 8000 screen. HDMI and DVI also have different source-resolution limits. The HDMI loop output carries the HDMI input; do not assume that it repeats a DVI source.
For spherical-screen processing, the manufacturer identifies KR, Hxs and Mx receiving-card series. The preserved model document specifies eight output ports in this mode, so confirm the actual hardware and firmware revision before sizing a spherical project. For 3D operation, recalculate the screen capacity because LED load is halved, and confirm the compatible transmitter, glasses and receiving configuration.
Verify the exact receiving-card model, firmware, port mapping and source timing before ordering. If you need twenty Ethernet outputs and documented optical transmission, compare the Kystar KBS2000 using its own specification.
Frequently asked questions
Which KBS1000 input supports 4K60?
The HDMI 2.0 input supports up to 4096 × 2160 at 60Hz. The DVI inputs have a documented maximum of 2048 × 1152 at 60Hz.
Can KBS1000 drive a native 4K LED wall?
A complete 3840 × 2160 wall exceeds the 6.5-million-pixel output capacity. Size the LED canvas separately from the source resolution.
Does 3D use the full 2D pixel budget?
No. The manufacturer document states that LED load is halved in 3D mode.
Conclusion
KBS1000 provides ten-port LED sending with 4K60 HDMI input, DVI sources and calibration tools for a display within its 6.5-million-pixel budget. Plan the receiving system and any spherical or 3D mode before deployment. See the official Kystar KBS1000 page and the preserved exact-model document below.
Download Specification:
Kystar KBS1000 LED Display Control System Sending Box Specification(Chinese)
