Ultra Wide Bandwidth HDTV 8 x 4 Matrix Switch

                          Accepts Any Remote Control or RS-232

Back panel image          Back panel diagram

Ever wished you could view full quality HDTV throughout your house without a closet full of equipment in every room?  CMX84 integrates everything you need to distribute all your HDTV video and audio sources to all the displays throughout your home. 

CMX84 is the most feature rich high performance matrix switch on the the market.  We support more signal types than the competition.

The CMX84 has the following features

1. 8 input sets, each includes the following
   • HDTV component video
   • Composite video
   • Digital audio Coax / RCA
   • Digital audio TOSLINK / Optical (6 inputs)
   • Analog audio R/L
2. 4 independently controllable output sets, each includes the following
   • HDTV component video
   • Composite video
   • Digital audio Coax / RCA
   • Digital audio TOSLINK / Optical
   • Analog audio R/L
3. Each output type individually controllable (advanced mode) or linked (basic mode)
4. Full 256 step volume control on the analog audio outputs
5. 256 step volume equalization on the analog audio inputs
6. Programmable balance control on the analog audio outputs
7. Remote IR control with Zerokey code learning ability
8. RS-232 input for serial control
9. Flash based micro controller which allows firmware updates over the RS-232 port
10. Professional quality video amps capable of driving cables up to 300'
11. High quality Burr-Brown audio amplifiers on the analog audio outputs
12. Designed and tested to pass all video signals up to and including 1080p
13. Steel rack mountable case
14. Optional rack mounting ears

Flexible control options

CMX84 can be controlled by several methods, you can choose the one the best fits your home theater control scheme.

1. Manual control using the front panel buttons
2. IR control using a programmable remote.  You can download the Pronto codes needed here.  The raw Hex format is here.
3. IR control using your standard remote.  Zerokey can learn any remote keys to control CMX84
4. RS-232 control with a PC or your existing home theater controller.  RS-232 programming guide here

Each output is individually switch-able.  You can configure CMX84 in one of 2 control modes:

1. Basic mode:  Component video, composite video, analog audio, and digital audio(coax/tos) switch together.
2. Advanced mode:  Component video, composite video, analog audio, and digital audio(coax/tos) all are switched independently

Supported by:

Audio volume control

The CMX84 integrates fully independent input and output volume adjustments on analog stereo audio using the best quality Burr-Brown line level amplifiers.  Why is this important? 

The input volume control allows you to equalize the volume from all sources to a common level.  Many satellite boxes output volume levels below nominal, so without this feature you would need to adjust the volume manually every time you switch between Cable/DVD to satellite.  After equalization, all your sources will have the same volume level. 

The output volume control is mainly used for two types of applications.  The first is to control the volume on your TV speakers from the centralized system.  It eliminates the need to use the TV remote to control volume.  The second application is for in wall/ceiling speakers.  Since volume control is built into the CMX, you can use inexpensive and high quality fixed gain multichannel power amplifiers to drive your speakers.  Not only does this simplify control, but it will save you several hundred dollars on the total solution.

Video distribution

CMX84 is the ideal amplifier for driving long video cables in your home.  Many vendors claim their products can do this, but very few can accomplish this without distortion of the video.  The most important amplifier design factors in driving long cables are source impedance matching, output connector quality, amplifier bandwidth, and amplifier current drive and slew rate.  Our amplifier uses the best components for all these, resulting in the best signal distribution you can get.

ZeroKey technology

The remote control interface can use ZeroKey infrared code cloning to map any remote control key to each of the inputs & outputs.   ZeroKey technology is compatible with virtually all remote controls, and does not interfere with the normal operation of the remote.  Please see our quick start guide for a description of how to program for an IR remote using ZeroKey.

ZeroKey programming is stored in flash memory, and you will not need to reprogram even if you lose power.  If you buy a new remote in the future, don't worry, the CMX84 can be reprogrammed as much as you like.

Unit includes:

• CMX84 HDTV matrix switch as pictured with 1 year warranty
• 12V DC desktop power supply with 30 day warranty
• Owners manual

Specifications:

• 32 High bandwidth analog inputs  (can be used for component video and composite video)
      75Ohm terminated at all frequencies
      Gold plated matched low impedance RCA jacks
      1Vpp nominal input swing (Ypbpr) or 1.3Vpp (Cvbs)   4Vpp maximum  (DC invariant)
      DC rejection via capacitive coupling
      Crosstalk < -80 dB
• 18 High bandwidth analog outputs  (can be used for component video and composite video)
     Source impedance 75 Ohms
     Gold plated matched low impedance RCA jacks
     All output sets individually controllable/switchable
     High performance amplifier capable of driving over 300ft of coax cable per output
     2V/V gain to properly drive output load termination (zero effective gain at display)
     -3dB bandwidth > 100 Mhz
• 16 Analog audio inputs
      10KOhm terminated at all frequencies
      Gold plated matched low impedance RCA jacks
      2.6Vpp nominal input swing   4Vpp maximum  (DC invariant)
      DC rejection via capacitive coupling
      256 step programmable input volume equalization
      Crosstalk < -110 dB
• 8 Analog audio outputs 
     Source impedance 75 Ohms
     Gold plated matched low impedance RCA jacks
     All output sets individually controllable/switchable
     High performance Burr-Brown amplifier capable of driving over 300ft of coax cable per output
     256 step programmable volume control
     THD+N < 0.0004%
• 6 Optical Digital audio inputs + 4 Optical Digital audio outputs
     Optical digital audio inputs have built in shutters, no plugs needed
     Selectable transcoding from coax digital audio
     All outputs individually controllable/switchable
• 8 Coax Digital audio inputs + 4 Coax Digital audio outputs
     Gold plated matched low impedance RCA jacks
     AC coupled to protect all connected equipment
     Capable of driving over 300ft of coax cables
     Selectable transcoding from optical digital audio
     All outputs individually controllable/switchable
• IR receiver (front)
• RS-232 control input (DB9 female) & RS-232 expansion output (DB9 male)
• Internal design
      Flash programmable micro controller enables ZeroKey remote technology
      Ultra wide bandwidth integrated buffered t-switch matrix prevents crosstalk or signal distortion
      Independent professional quality video amplifiers for best performance
      High reliability capacitors and self resetting fuse protection for long life
      Designed and manufactured in the USA
  
• Housing
      Black steel rack mountable housing   17" x 13" x 3.5"   (2 RU)

Online manual (word document)    Quick setup guide (word document)   

IR remote programming guide        CMX86 family coupling change instructions