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LS300T4K LED display scaler-switcher with audio - 11 inputs

4K LED display scaler-switcher with audio - 11 inputs

Optoma LED scaler-switchers are designed for use with our LED displays.

HQUltra technology was chosen to power the large displays used at the recent Rio Olympics. The same technology powers the Optoma range of LED scaler-switchers.

HQUltra 4K image processing delivers best in class picture quality and low latency video processing. Inputs can be switched seamlessly in as little as 0.25 seconds. The same processor can drive loudspeakers in meeting rooms and smaller conference rooms, plus line level balanced stereo outputs to drive an external amplifier or powered loudspeakers.


11 video inputs: 2 x 3GSDI, 1xHDbaseT4K, 2xHDMI 4K, 1xHDMI HD, 1xDisplayPort 4K, 1xVGA, 1xCVBS, 1xDVI-U, 1xH.264 HD Streaming Video
HQUltra - Industry leading scaling technology
Fast seamless switching - in as little as 0.25 seconds
Low latency - typically 1 frame
HQUltra 4K Scaling

HQUltra 4K Scaling

Our scaler-switchers are based on class-leading 4K image processing technology. Scaling provides the best in class picture quality with low latency video processing

HQUltra technology offers the sharpest and clearest images, even at high scaling factors - as illustrated in the image

The HQUltra image is sharp, clear and free of any halo-effects

Ultra-Fast Switching

Ultra-Fast Switching

Switching between different sources typically takes 0.25 seconds.

Based on HQUltra technology, these scaler-switchers promise ultra-fast switching transitions for a seamless on screen appearance.

Similar single channel competitive switchers which can take up to 3 to 4 seconds.

Low delay for IMAG

Low delay for IMAG

Input video is processed with only one frame delay.

In live performances, this is a must have feature to avoid the unwanted effect when there is a mismatch between what the audience views on the display and the live scene in front of them.

Streaming Video

Streaming Video

Units fitted with the streaming option can accept 1080p H.264 streaming video via the Gigabit Ethernet port and route it to the output.

This provides additional flexibility by allowing it to accept contact from a pre-created file or a streaming source. Therefore, the input signal doesn’t need to come from an external hardware device such as a PC or a video server.

HQUltra 4K at 50/60Hz

HQUltra 4K at 50/60Hz

The PS200/300 series accept 4K inputs at 50/60Hz refresh rates and downscale to any lower resolution. These models also up scale any signal to 4K 50/60Hz

4K format offers the highest resolution video with the best clarity and sharpness. In addition to 4K scaling, processing at 50/60Hz refresh frame rate allows for fast motion video to be viewed with exceptional smoothness.

Sporting events and fast motion video need to be displayed at full 50/60Hz for the motion to look natural and smooth.

PTZ (pan-tilt-zoom)

PTZ (pan-tilt-zoom)

This feature provides the user with great flexibility. Users are not limited in scaling the whole image, but they can choose the section they would like to scale.

Any portion of the input image can be selected, scaled and presented to the output. Adjustments can be done on percentage or in pixels increments.

Built-in Test Patterns

Built-in Test Patterns

Several build-in test patterns, including a moving cross, are available to verify that valid video is present on the output. Test patterns can be enabled even when there are no input signals connected to the unit.

Test patterns can be used to perfectly size the unit’s output to the display area.

Up-to four additional custom test patterns can be loaded to the unit through the web interface, allowing users to download their own test patterns.



Units fitted with the HDBT option can accept and output video in the HDBT format.

HDBT format allows transmission of digital signals over long distances via the cost-effective CAT6/CAT7 cables.

Transmitting a digital signal (HDMI/DP/DVI) over long distances, such on a ceiling mounted projector, can be problematic due to the distance limitations of the DP/ HDMI and DVI standards. This problem is solved by outputting and transmitting HDBT signal over CAT6/CAT7 cable up-to 100 metres

Picture format

Picture format

This allows the user to format the output image when the input aspect ratio is different to the display panel’s aspect ratio. Four formats are available: original, full screen, crop and anamorphic.

Original: the input image is scaled to fit the display area either horizontally or vertically without any distortion. The input aspect ratio is preserved and unused areas on the top/bottom or left/right are set black.

Full Screen: the input image is scaled to completely fit the display area without preserving the aspect ratio of the source. This will cause distortion but no black areas will be visible.

Crop: the input image is scaled to completely fit the display area while preserving the aspect ratio of the source. Portions of the input image on the top/bottom or left/right will be cropped out of the output image.

Anamorphic: the image will be treated as in crop, but it is always scaled to a 16:9 aspect ratio.

The images below provide examples of how an input image 1400x1050 (4:3) is scaled to an 1920x1080 (16:9) output with the four available formats.



Audio models are fitted with eight-line level stereo audio inputs plus two microphone inputs with phantom power. Each unit also includes a built-in mixer and a stereo 30W amplifier with two loudspeaker outputs. Two additional stereo balanced line level outputs are also available.

Each audio and mic inputs can be assigned separately to any of the video inputs

With the addition of the audio feature these models are the perfect all-in one presentation box

The unit can satisfy any A/V requirement for any event in a corporate boardroom, hotel conference room, lecture hall or house of worship



Any image in PNG format can be downloaded from the computer and used as a logo

The image size limitation is 64MB

Before an event starts or during breaks, this feature allows the customer’s company logo to appear on the screen



This feature enables two input sources to be displayed simultaneously.

Users can reduce the area where the image is displayed and use the outline area to display titles, messages or advertisements depending on the application


2x HDMI 4K, 1x HDMI HD, 1xDisplayPort 4K , 1xHDBaseT 4K, 2 x 3G-SDI 1x DVI-U supporting VESA modes, SD, HD, can be configured as fourth HDMI input. DVI-U input also simultaneously supports VGA/RGBS/YPbPr legacy analog formats with suitable cable
1x VGA Analog, 1x Composite PAL/NTSC/SECAM
1x H.264 Streaming Video Input via Gigabit Ethernet Port

HDCP supported on all HDMI/DVI/DisplayPort I/O

6x Line Level Stereo Audio via 3.5mm Jack
1x Line Level Stereo Audio via 2xRCA
2x Microphone Input with 48V Phantom Power via 6.35mm Jack


1x HDMI 4K via HDMI connector 1x DVI/HDMI via DVI connector 1 x HDBaseT 4K 1 x 3G-SDI 1x S/PDIF digital audio via RCA NB: 3G-SDI output is disabled with HDCP-encrypted input and also when incompatible output modes are selected. All outputs are otherwise available simultaneously, with the same image shown on each.

All outputs are available simultaneously, with the same image shown on each.

1x Loudspeaker Connector, 2x15W RMS 1x Line Level Balanced Stereo

Supported Switching & Sync Modes HQUltraFast input Switching in Free-Run mode Also supports Source Lock when HQUltraFast not required

User Controls Front panel jog-wheel and LCD menu display for fast set-up. Keypad for direct input selection and integral indicator LEDs. Remote control via RS232, TCP/IP API and Web Server. Gigabit Ethernet for webserver and remote control API

supported formats

Supported digital input and output formats:

4K/UHD (HDMI 4K/DisplayPort /HDBaseT only) 3840x2160p, 4096x2160p 23.97/24/25/29.94/30/50/59.94/60; UHD/4K 50/59.94/60p modes supported in 4:2:0 format

HD 1280x720p, 1920x1080i, 1920x1080psf, 1920x1080p23.97/24/25/29.94/30/50/59.94/60, 2048x1080p23.97/24/25/29.94/30/50/59.94/60

ED 480p, 576p, SD 625i (576i), 525i (480i)

Common VESA graphics formats from VGA to 4K, (Modes higher than WUXGA on 4K capable input channels only)


EMEA standard warranty
EMEA standard warranty




Net weight
Dimensions (W x D x H) mm
483 x 181 x 43
Inputs 2 x HDMI UHD 4K, 1 x HDMI FHD 1080P, 1 x DisplayPort 4K, 1 x VGA, 1 x Composite video, 1 x RJ45 streaming, 1 x 12V trigger, 7 x Audio RCA L&R, 1 x HDBaseT 4K, 2 x 3G-SDI
Outputs 1 x HDMI UHD 4K, 1 x DVI/HDMI, 1 x S/PDIF, 1 x Speaker, 1 x HDBaseT 4K, 1 x 3G-SDI
Control 1 x RS232, 1 x RJ45
LED display scaling
LED display splicing
Verified owner
Signal processor

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