Kramer's VSM 4x4X is an outstanding 4X4 seamless matrix switcher. It's incredibly versatile, serving as a video wall driver for 2X2 or 1X4 setups, a quad - viewer, or a 4 - picture multi - viewer. Key features include PixPerfect Scaling Technology for precise pixel mapping and high - quality scaling. It offers two matrix switching modes: truly seamless switching with zero - time video cuts or fade - through - black mode for independent output resolutions. There are multiple aspect ratio selections like full, 4:3, 16:9, and best fit. With 4 preset memory locations, you can quickly access common IN - OUT configurations. Non - volatile memory saves your final settings. Built - in noise reduction and picture enhancement features improve the visual experience. It supports HDMI 2.0, including 4K@60Hz, Deep Color, x.v.Color, 7.1 PCM, Dolby TrueHD, and DTS - HD. You can choose from various operation modes such as 4x4 matrix switcher, video wall (2x2 or 1x4), and multi - view display options like Split, Side - by - Side, PIP, POP, Stacked, or Quad display. Bezel correction is available in video wall mode, and there's constant output sync for all operations. A built - in Video ProcAmp allows individual color, hue, sharpness, noise, contrast, and brightness settings for each input. Firmware can be easily upgraded via Ethernet using a user - friendly software tool. It has advanced EDID management per input, 4 HDMI inputs, 4 scaled HDMI outputs, and 4 balanced audio outputs with independent volume settings. Technical specifications include details on inputs, outputs, ports, video, audio, power, environmental conditions, regulatory compliance, enclosure, and dimensions.

Using the Kramer VSM - 4X4X is straightforward. First, connect your devices to the 4 HDMI inputs. For audio, you can use the balanced audio outputs and adjust the volume for each output independently. To select an operation mode, use the front - panel buttons. You can choose between the 4x4 matrix switcher mode, video wall mode (either 2x2 or 1x4), or various multi - view display modes. If you find a configuration you use often, save it to one of the 4 preset memory locations for quick access later. When using it as a video wall, make sure to adjust the bezel correction for a seamless look. For best performance, keep the device in an environment with an operating temperature between 0°C to 40°C and humidity between 10% to 90% non - condensing. The device has fan ventilation for cooling, so ensure the vents are not blocked. If you need to upgrade the firmware, use the Ethernet port and the provided user - friendly software tool. Remember to save your settings in the non - volatile memory before turning off the device. Also, always use the included power adapter cord for safe and proper operation.