Epson EH-QS100B 4,500-lumen 4K ultra short throw laser projector for a flexible home cinema setup

Epson EH-QS100B – a powerful pure engine for your individual home cinema

The Epson EH-QS100B is a pure-engine ultra short throw laser unit – as a dedicated image engine, it deliberately leaves out its own smart OS and speakers, making it the ideal basis for home cinema enthusiasts who want to put together their own setup. You choose the streaming player and sound system to suit your taste; the EH-QS100B delivers an image with 4,500 ISO lumens and 4K PRO-UHDoutput that impresses even with some daylight in the living room – provided a suitable CLR screen is used. From a distance of 35 cm from the wall, it projects a 100" image (approx. 2.21 m wide); the projection area can be extended further in 4 image size steps. The triple-adjustable colour mode (incl. ISF calibration) and the Frame Interpolationfeature for smoother motion round off the picture package. If you are looking for a turnkey laser TV with a smart OS, the Epson EH-LS970B or the JMGO O2S Ultra are strong alternatives – the QS100B is aimed at buyers who prefer maximum flexibility and AV control.

Picture quality: 4K PRO-UHD, laser contrast and HDR10

The EH-QS100B relies on Epson's 4K PRO-UHDtechnology: the 0.62" 3LCD chip shifts twice as many pixels onto the screen as Full HD in two phases – the result is sharp 4K UHD output that plays 4K streaming content and UHD discs with pixel precision. For text, graphics and fine details, this means razor-sharp contours even on large screen sizes.

Epson specifies the dynamic contrast as 5 million:1 ; native contrast is 1,800:1. The laser light source produces an even image with stable colours from the outset – something lamp projectors cannot maintain consistently over their service life. HDR10 and HLG are processed; highlights and shadow areas benefit from the high luminance of the 3LCD optics, which deliver colour and white brightness at equal strength.

The Frame Interpolation feature calculates intermediate frames for smoother reproduction of 24p film material – it can be deactivated if you prefer the original cinema feel. The projector is also ISF-calibratable: trained ISF technicians can professionally adjust the colour reproduction to your individual room conditions.

Applications: what the Epson EH-QS100B is ideal for

Living room home cinema with your own choice of streaming setup: The EH-QS100B handles the image output; Apple TV 4K, Fire TV or a Google TV Streamer take care of Netflix, Disney+ and more – the streaming player is connected via HDMI 2.0 and powered by its own power supply. This division lets you replace or upgrade the streaming device and sound system independently at any time.

Permanent installation with AV control: The integrated PJLink, Crestron, AMX and Control4 protocols as well as RS-232 make the EH-QS100B compatible with home automation and AV control systems. Direct Power Onmode starts the projector automatically when mains power is applied; HDMI-CEC switches connected sources in sync. For showrooms, training rooms or shop window installations, switch-on and switch-off schedules can be programmed by day of the week.

Portrait mode and 360° installation: The EH-QS100B supports both portrait operation and full 360° installation – ideal for installation tasks where a conventionally placed projector reaches its limits. For normal home cinema use, landscape placement on a TV unit directly in front of the wall is recommended.

Installation & connections

The EH-QS100B stands directly in front of the wall on a TV-ready piece of furniture and projects upwards at an angle. The following installation dimensions are taken from the Epson manual (16:9 projection, "Wide" setting):

All distance values refer to the front edge of the projector housing to the projection surface. For sharp results on large screen sizes, we recommend a dedicated CLR screen (ceiling light rejecting): its sawtooth microstructure directs the UST projector light coming from below towards the viewer and blocks ceiling light from above – image contrast is maintained even in a brighter room.

Connections at a glance:

HDMI 2.0 2× (1× with eARC)

1× eARC for soundbar or AV receiver – returns the projector's sound at full bitrate (Dolby Atmos, DTS:X). 1× standard for streaming player, games console or UHD Blu-ray player; HDMI-CEC switches sources in sync.

USB-A 2× (5 V / 1.0 A)

Power supply for USB-powered streaming sticks such as Fire TV Stick or Chromecast. Apple TV 4K uses its own power supply.

LAN (RJ-45) network control

Web interface plus PJLink, Crestron, AMX and Control4 for integration into home automation or AV control systems.

RS-232 serial control

Direct control commands for power on/off, input selection, brightness, volume and status monitoring.

Security Kensington + PIN

Theft and access protection for permanent installations; plus a keypad lock on the housing (anti-tampering).

For wireless casting – AirPlay, Miracast and Google Cast at the same time – we recommend the EZCast Pro Dongle II (HDMI casting receiver, available separately). It receives signals from smartphones, tablets and notebooks and enables multi-view from several sources simultaneously. Apple TV 4K, Fire TV and Google TV Streamer bring their own apps and streaming accounts and are connected via HDMI – they complement the EH-QS100B with a complete smart streaming experience.

Operation & light source

The EH-QS100B's laser light source is rated for 20,000 hours – equivalent to around 18 years at 3 hours a day or approx. 9 years with intensive use of 6 hours a day. No light source replacement by the user is planned during this period; the projector remains low-maintenance throughout its entire service life.

In normal mode, the EH-QS100B runs at 34 dB(A) – unobtrusive in rooms with background noise. In Eco mode, the level drops to 20 dB(A), which is barely noticeable during quiet evening screenings. Power consumption in normal mode is 333 W, in standby just 0.4 W.

The ALLM (Auto Low Latency Mode) switches the projector automatically to low-latency mode as soon as a compatible games console is connected – no manual switching needed. Weighing 12 kg with dimensions of 695 × 156 × 341 mm (W × H × D), the EH-QS100B is designed for a fixed position in the living room. M4 ceiling screws (max. 10 mm screw-in depth) allow professional ceiling mounting if required.

Epson provides a warranty on the EH-QS100B of 60 months (5 years).

Sound setup: add a soundbar or AV receiver

The EH-QS100B is designed as a pure engine: sound is handled by an external sound system of your choice. For the full home cinema experience, a soundbar or an AV receiver with a matching speaker set is ideal – this combination delivers true surround sound, which is what makes a home cinema experience complete.

Who is the EH-QS100B the right choice for?

• Home cinema enthusiastswho want to choose their own streaming player and sound system and value high picture quality and full upgrade flexibility.
• Tech-savvy DIY buyerswho want to integrate their projector into an AV control system (Crestron, AMX, Control4) or home automation.
• Small business premises – training rooms, showrooms, shop windows – looking for a powerful UST laser with network control and scheduling.
• Users with specific installation requirements (portrait mode, 360° installation) who want to combine an uncompromising installation device with consumer-grade picture quality.

Epson EH-QS100B vs. Epson EH-LS970B vs. JMGO O2S Ultra – which 4K laser TV is right for you?

Quick decision: The EH-QS100B is the choice for buyers who want maximum brightness (4,500 ISO lumens), AV control integration and a free choice of smart OS and sound system. The EH-LS970B offers the sharper Real 4K image, Google TV and Bose sound as a complete package. The JMGO O2S Ultra impresses with its triple laser colour gamut, Google TV and Dynaudio sound in a much lighter housing.

Colour variant: Epson EH-QS100W (white)

The EH-QS100B is also available in white: the Epson EH-QS100W is technically identical and is a particularly good fit for bright living spaces or white furniture.

Have you thought of everything?

• CLR screen (the picture upgrade for UST): A dedicated CLR screen unlocks the full image potential of ultra short throw projection – it directs the projector light coming at an angle from below specifically towards the viewer and blocks distracting ceiling light. The result: powerful contrast and rich colours even with living room lighting. Browse our screen range
• Soundbar or AV receiver: The EH-QS100B has no built-in speaker. For the full home cinema experience, we recommend a soundbar or an AV receiver with a speaker set.
• Streaming player: Connect Apple TV 4K, Fire TV or Google TV Streamer via HDMI – giving you all streaming apps directly on the projector.
• HDMI cable: For 4K HDR, we recommend certified HDMI 2.0 cables. Browse our HDMI cable range
• Wireless casting (AirPlay / Miracast / Google Cast): The EZCast Pro Dongle II receives all three protocols and enables multi-view from several sources.
• Ceiling mounting: Suitable ceiling mounts and ceiling lifts for discreet permanent installation.
• Blu-ray player: For the full 4K HDR picture with Ultra HD disc material: connect a UHD Blu-ray player directly via HDMI.

Conclusion: Epson EH-QS100B

The Epson EH-QS100B is the ideal projector for home cinema enthusiasts who want to put together their own components: with 4,500 ISO lumens,, 4K PRO-UHDoutput, a low-maintenance laser light source with a 20,000-hour service life and full AV control integration, it offers a powerful basis for any individual setup. Add the streaming player and sound system of your choice and a CLR screen to suit your room size – and you have a home cinema exactly the way you want it.

Let our team advise you on the screen, mount and optimal setup: Request a consultation