At AutoPatch, we’ve been designing and manufacturing high performance signal distribution equipment for nearly two decades. Our qualified and skilled engineers spend many painstaking hours designing and fine-tuning our industry leading products. Then these designs are handed over to our manufacturing facilities, which are specially built to create the optimal environment for production of electronic products.

Since delivery of our first product in 1989, AutoPatch continues to achieve industry firsts including large matrix switcher video specifications, ultra-flat response certification, and designs that combine multiple signal types. And, our products continue to define the standard in the industry for quality, flexibility, service and support.

With products currently installed in thousands of installations worldwide, AutoPatch is a trusted cornerstone in a variety of installations including hotel, entertainment, commercial, residential, military and medical applications.



Knox Video Technologies was founded in 1975 and is widely recognized as a pioneer in the design and manufacture of logic-based television studio equipment. The first Knox products were character generators for live broadcast titling. Gaining a reputation for value and ease of use, Knox character generators were quickly embraced by both the educational and industrial video markets. 

Knox introduced a low-cost matrix routing switcher in the early 1990s to address the explosive demands of the professional/industrial video market for an alternative to unwieldy patch bays. In the decade since, the Knox line of routing switchers has grown from a single 8 by 8 model to an array of cost-effective, user-friendly audio and video routing and distribution systems that range in size from 4x1 to 1024x512. Knox routers are now used in all market segments—broadcast, prosumer, industrial, presentation, high-end residential—with the ability to route a variety of video signal types including NTSC, PAL, Y/C, RGB and YUV Component, analog HDTV, RGBHV, VGA, and SDI, as well as digital audio and multi-level analog balanced and unbalanced audio at levels up to +24dB with optional built-in intput sensitivity trims and volume and tone controls.

Knox has consistently remained focused on its original mission: to deliver professional equipment at affordable prices. If there is a secret to Knox’s longevity it is in this simple mantra:

Marshall Electronics - For more than 25 years Marshall Electronics has specialized in the development, manufacture and distribution of leading edge technology products for a wide range of professional Audio/ Video applications. Our Headquarters, R&D Center and production operations are located within a few miles of Los Angeles International Airport in El Segundo, California. We are a privately owned American company with four distinct operating units, Broadcast / Multimedia Division, Optical Systems Division, Professional Audio Division and Cable and Connector Division. We operate manufacturing facilities in USA, Japan, Korea, Russia and China. Additional information about our company may be found on our corporate website www.marshall-usa.com.

The Broadcast/Multimedia Division of Marshall Electronics has sustained significant growth since it's inception in 1999. Our product line has grown to meet the demands of our worldwide customers, the broadcaster, video and multimedia professionals and since then we have gain recognition as the leading manufacturer of LCD rack mountable monitors in the world. In 2002, Marshall signed an exclusive distribution agreement with IKEGAMI Japan for private labeling of Marshall racks to be sold in Japan under IKEGAMI name. As we begin a new year in 2006, our range of rack mounted and stand alone LCD monitor solutions has been expanded to accommodate industry transitions to DTV and High Definition Imaging. Our new conversion and distribution products employ the latest technologies and are designed to provide the most cost effective "digital glue" solutions available in the market.

Our Optical System Division supplies cameras and lenses to the industrial video, covert security and surveillance markets. In addition, we supply modular technology for cameras and LCD displays to video conferencing and multi-media systems integrators. Our entire range of products can be viewed at www.mars-cam.com/optical

Marshall's Professional Audio Division & Cable and Connector Division are preferred suppliers to the professional audio community. Among the many products manufactured and distributed by these divisions are Tajimi precision connectors (including Fiber Optics), Mogami, the premier cables for the music recording industry, and MXL Microphones, the standard in affordable music recording technology. Our websites for these lines are www.MogamiCable.com and www.mxlmics.com.