Setting up a home projector often involves an annoying juggling act: finding stackable books to adjust angles, running external speaker wires to fix tinny sound, and tweaking keystone settings every time the unit gets nudged. Chinese display maker OBE is targeting those exact headaches with its new R3 Ultra Max projector. Listed on JD.com for $560 (3,999 Yuan), this home theater projector skips the marketing race for native 4K resolution in favor of heavy physical utility, combining an integrated gimbal stand with built-in subwoofers and automatic room calibration.
At its core, the R3 Ultra Max uses a 5-inch TCL CSOT LCD display outputting native 1080p resolution while accepting 4K input signals. It generates up to 1,800 CVIA lumens of brightness alongside a 40,000:1 dynamic contrast ratio, capable of projecting images between 40 inches and 150 inches with a standard 1.2:1 throw ratio. To ensure movies are not drowned out by fan noise, OBE engineered the cooling chassis to operate below 26dB during standard playback.
Built-In Gimbal and Room Calibration Hardware
The central design feature of the R3 Ultra Max is its structural Z-shaped gimbal base. Offering 120 degrees of vertical tilt and full 360-degree horizontal rotation, the stand allows users to beam content onto walls, angled ceilings, or high corner spaces without needing external tripods or shelf mounts. Crucially, the base-mounted speaker system remains locked in position regardless of where the optical lens is pointed, ensuring sound always fires directly toward the seating area.
To streamline alignment, the projector integrates a Time-of-Flight (ToF) distance sensor paired with a CMOS optical camera. Powered by OBE's Super AI OS 2.0 software, the system handles automatic keystone correction, autofocusing, screen border alignment, and real-time obstacle avoidance. When objects like picture frames or light switches block the path, the projector adjusts the frame dimensions automatically.
Dedicated Subwoofer Audio and Low-Latency Performance
While most compact projectors deliver weak sound that necessitates a separate soundbar, the R3 Ultra Max incorporates a complete 2.1-channel audio system directly into its base. The setup features two 10W mid-and-high frequency drivers complemented by a heavy-duty 25W subwoofer housed inside a generous 1,070cc acoustic chamber. This mechanical volume allows the projector to reach deep bass notes down to 43Hz, delivering impactful movie audio straight out of the box.
Underneath the hood, the projector is driven by a MediaTek MT9681 quad-core processor paired with 4GB of RAM and 64GB of internal storage. Connectivity includes two HDMI 2.1 ports (one equipped with eARC for external audio passthrough), a USB-A 3.0 port, a 3.5mm headphone jack, dual-band Wi-Fi 6, and Bluetooth 5.2. Gamers can leverage a low input latency mode rated down to 3ms, making fast-paced console titles or PC streaming smooth and responsive.
Smart Software and Global Market Reality
For smart TV functionality, the projector runs Super AI OS 2.0, incorporating Tencent's Hunyuan large language model to handle conversational voice commands and search queries. Standard screen mirror protocols like AirPlay and Miracast are integrated out of the box for smartphones and tablets.
Currently, the OBE R3 Ultra Max is available strictly in China for $560 (3,999 Yuan). While global availability and international release timelines have not yet been announced, its practical blend of robust audio, flexible mounting, and low input lag sets a compelling precedent for mid-range home cinema gear.