Switchers are used when your display (projectors, PC monitors or TV) has
less inputs than the number of devices youn plan to use.
can use their A/V
Receiver to handle the task of switching video devices, but changes in
resolution (4K) and content protection (HDCP) standards change around
switchers are designed to double as distributors but with the added
function of individual control for the multiple input/output.
Matrix switching is available in both analog and digital flavors,
here for more information.
Features and Options
can be the ideal solution when automation is integrated into your
entertainment system. There are several control system interfaces
as listed below. Companion audio switching is another popular
feature for learning remote use. Below are list of features to
look for in your choice of switchers.
- Auto-sensing switches poll for active signal which triggers the
switching function. To optimize how this works, a priority
sequence is also used to allow two devices to be powered up in a
Controlled - An IR port present with or without remote can be the
lowest common denominator in the automation system, better combined with
hard wired front panel push button.
- The preferred interface for high level control, RS-232 is used for
complex automation commands that control macro laden programming.
Whole house systems such as AMX, Crestron, as well as a whole new legion
of automation pioneers appearing on the market ushers in more
competitive pricing in the control arena.
Switching - Companion audio switching helps to ease the automation
programming allowing both to be done simultaneously. Sometimes
overlooked, and one of the more useful features is the presence of both
analog and digital audio options, especially in a home with children or
casual users that should be kept away from high end media systems.
Analog audio allows the use of speakers in a TV for casual watching or
Distribution- Few switchers, often a multiple output matrix units
offer amplification for distribution of A/V signals that require long
Scaling - Video processing or scaling is often done in the display,
but many enthusiasts add external scalers that often improve the image
quality, especially in digital panels that require more precise
resolution controls for non-standard native pixel grids. Many
scalers function as switchers as more manufacturers introduce products
that accept multiple digital sources (DVI or HDMI).
Video Connection Chart
Quick overview of the video glossary gets you up to the
speed. Below are connection types used for High Definition (HDTV)
video found on back of most TV sets and the