Choosing the aspect ratio, Video Connectors

Please note the HD404 projectors are designed for use with 16:9 screens. They also have a built in scaler for use with 2.35:1 screens. To display images at the highest definition possible in 2.35:1 or cinemascope (most major movies are filmed in 2.35:1) an anamorphic lens is required. We recommend the Panamorph brand, which has fixed, movable and motorized anamorphic lens for use with the HDP404.

Choosing the aspect ratio

Aspect ratio is the ratio of the image width to image height. HDTV and most DVDs are 16:9, which is the default for this projector. When in 4:3 mode the projector places black bars on both sides of the image. Native mode centers the image and turns off the internal scaler so that any resolution larger than the native projector resolution is cropped on the edges. Letterbox expands the image to fill the screen.

What you plan to project will also help you choose between 4:3 and 16:9. For example, most TV shows are 4:3, while most movies are 16:9. If you have a 16:9 screen, then you should select an aspect ratio of 16:9 for anamorphic movies and HDTV, and Native for 4:3 content. If you have a 4:3 screen you should still use 16:9 for anamorphic movies or HDTV, but you also have the option of using 4:3, Native, or Natural Wide for 4:3 content. Keep in mind that anamorphic movies only appear correctly if the DVD player is set to output to a 16:9 television. Natural Wide stretches a 4:3 image to fill the entire 16:9 screen. The center two-thirds of the image is unchanged; the edges of the image are stretched.

Video Connectors	Component RCA
	M1-DA/DVI
12 VDC triggers	RS-232 IR input

HDMI

Rear Connector Panel

S-video

Composite RCA Component video

HDP404 specifications

Knoll Systems HDP404 is an advanced high-definition multimedia distribution system that brings unparalleled quality and convenience to AV installations in both commercial and residential settings. This innovative device is engineered to handle a range of audio and video signals, delivering seamless performance for various applications, including home theaters, conference rooms, and educational institutions.

One of the main features of the HDP404 is its ability to support 4K Ultra HD resolution, providing crystal-clear images and vibrant colors. This is complemented by its capacity to manage multiple input sources, making it suitable for setups with multiple devices such as gaming consoles, Blu-ray players, and streaming devices. The system is designed to provide smooth switching between these sources without any latency, ensuring a delightful user experience for viewers.

The HDP404 incorporates advanced scaling technology, which automatically adjusts the resolution of the output display to match the capabilities of the connected devices. This dynamic scaling feature minimizes compatibility issues and allows for optimal image quality across a variety of screens and resolutions. Additionally, this technology enhances the flexibility of the installation, enabling users to change connection setups without compromising on quality.

Another notable characteristic of the Knoll Systems HDP404 is its robust signal distribution capability. The device features an HDMI output that supports long-distance transmission using CAT6 cabling, allowing for greater distance between the source and the display without loss of quality. This makes it ideal for large venues where equipment might be spread out over a significant area.

The HDP404 is also equipped with user-friendly interfaces, simplifying the process of configuration and operation. An intuitive remote control and web interface allow users to adjust settings easily, modify source configurations, and manage connected devices from a distance. Furthermore, the unit supports both TCP/IP and RS-232 control, making it compatible with a wide range of automation systems for smart homes and commercial applications.

In summary, the Knoll Systems HDP404 stands out as a versatile and powerful multimedia distribution solution. With its support for 4K Ultra HD, advanced scaling technology, robust signal distribution, and user-friendly controls, it meets the demands of modern AV installations, delivering exceptional performance and quality in any environment.