QM-MD7X2
7x2 QuickMedia® Distribution Center
The QM-MD7X2 is a versatile matrix switcher and multi-channel digital
audio signal processor featuring two QuickMedia® inputs and outputs
plus five sets of local AV inputs, gated microphone mixing, and two
audio outputs sections each with discrete program and speech channels.
Occupying just one rack space, the QM-MD7X2 affords extensive signal
routing and processing capability as a midpoint distribution switcher
or front-end multimedia interface for a complete MediaManager AV
presentation system.
Three sets of 3 BNC connectors are provided on the QM-MD7X2 to accept
video inputs from three composite, S-Video, component, or HDTV
sources. Two RGB inputs are also included to accept high-resolution
computer sources up to 1920 X 1200 pixels. Five stereo audio inputs
accommodate unbalanced line-level signals from computers and program
audio sources.
In addition to the local inputs, there are two QuickMedia (QM) input
ports which receive RGB, video, program audio and mic signals from
FlipTop or Wall Plate transmitters over inexpensive CAT5e type cable*
via Crestron's exclusive QuickMedia transport.
The 7X2 video and audio switchers built into the QM-MD7X2 allow any of
the local or QM input signals to be routed independently to either of
two QM outputs. Each QM output can be used to feed a separate
QuickMedia Receiver to support two independent display devices.
Additionally, two gated microphone inputs are included on the QM-MD7X2
with software switchable 48V phantom power at both inputs to support
either dynamic or condenser microphones. Balanced or unbalanced
line-level sources such as wireless microphones can also be
accommodated. These two microphone/line inputs can be mixed with the
two mic signals brought in at either QM input, with two independent
4X1 mixes possible to feed each of the two QM outputs. Each mix also
includes independent 4-band speech-optimized graphic equalization for
each individual microphone input.
Also key to the QM-MD7X2 is its two sets of local audio outputs, each
consisting of a stereo program channel and a mono speech channel.
These six balanced/unbalanced line-level outputs are designed to drive
rack-mounted amplifiers like the QM-AMP3X80, as well as codecs,
recorders, assistive listening devices, and more. Generally, Audio
Output 1 contains the same stereo program signal and microphone mix as
that fed to QM Output 1, and likewise for Output 2. However, the mix
of left program, right program, and microphones is independently
adjustable for each local output channel.
Each local output channel includes adjustments for volume, bass, and
treble, a mute control, plus ten-band graphic equalization and 2-band
parametric equalization. In addition, the speech outputs include up to
40mS of delay adjustment for loudspeaker alignment.
With such extensive control over the system's audio performance, the
QM-MD7X2 effectively eliminates the need for expensive outboard
processors to attain precise adjustment tailored to the acoustical
environment. All audio processing and mixing is performed in the
digital domain, adjustable at setup using Crestron's QM Tools software
(part of Crestron Toolbox). Many parameters are also controllable in
real-time from a keypad or touchpanel, with numerous presets that can
be saved for instant recall to account for varying source material or
room conditions.
To gain additional signal routing flexibility and expand input and
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800.237.2041
output capacity, up to two QuickMedia Distribution Centers,
Distribution Amplifiers, and Matrix Switchers may be cascaded in a
given QuickMedia signal path*. For instance, a QM-MD8X8 or QM-MD4X2
may be used to expand the input capacity of the QM-MD7X2. Complete
system operation can be made transparent to the end-user with all
signal routing occurring smoothly under the command of the
MediaManager control system. Built-in video-sensing on every input can
be utilized to trigger automatic input selection and provide power
status information to the control system.
Control and monitoring of the QM-MD7X2 is also possible independent of
the control system using its front panel pushbuttons and LEDs.
Customizable label strips are provided to easily designate inputs and
outputs by name using Crestron Engraver software or standard 3/8" tape
labels. For security, the front panel controls can be locked out.
> Versatile matrix switcher and audio processor
> 3 video, S-Video, or component inputs
> 2 RGB inputs | 1 RGB monitor pass-thru
> 5 stereo audio inputs | 2 gated microphone inputs
> 2 QuickMedia inputs | 2 QuickMedia outputs
> 2 audio outputs w/discrete stereo program and speech
channels
> Graphic and parametric equalization
> Versatile input mixing and microphone EQ
> Up to 40ms speech delay
> Front panel controls | Single-space rack-mountable
QM-MD7X2 7x2 QuickMedia® Distribution Center
SPECIFICATIONS
Video
Switcher: 7x2 crosspoint matrix; routes any of (3) multi-format video, (2)
RGBHV, and (2) QM inputs to (2) QM outputs
Signal Types: RGB and composite, S-Video, or component video (does not
transcode)
Video/HDTV Formats: NTSC or PAL, HDTV up to 1080i/1080p
RGB Formats: RGBHV, RGBS, or RGsB
Gain: 0dB (75 ohms terminated)
Maximum Resolution: 1920 x 1200 @ 60Hz (at unity gain) with maximum
cable length of 450 feet and maximum compensation at receiver
Crosstalk: -60dB
Audio
Features: 7X2 stereo crosspoint matrix, 2-channel gated mic preamp, 2X2
QM mic input switcher, 4-channels mic EQ, 4X2 mic mixer, (2) 3X3 speech/
program matrix mixers, stereo volume/tone control and EQ per each of (2)
PROGRAM outputs, mono volume/tone control and EQ/delay per each of (2)
SPEECH outputs
A-D/D-A conversion: 24-bit, 48 kHz
Output Volume Range: -80dB to +20dB, 0.1dB steps
Mixer Volume Range: -80dB to 0dB, 0.1dB steps
Input Compensation: ±10dB, 0.1dB steps
Mic Input Gain: 0 to 100 % (40dB range) plus mute
Gate Level (Threshold): 0 to 100 %
Attack: 0 to 100 mS
Decay (Release): 0 to 5000 mS
Mic EQ Filter Gain: ±12dB, 0.1dB steps
Mic EQ Filter Center Frequencies: 160, 500, 1.2k, 3k Hz
Bass Gain Range: ±12dB @ 100Hz, 0.5dB steps
Treble Gain Range: ±12dB @ 10kHz, 0.5dB steps
Output Equalization: 10-band graphic + 2-band parametric
PEQ Filter Gain: ±12dB, 0.1 dB steps
PEQ Filter Bandwidth: 0.1 to 3.0 octaves, 0.1 octave steps
PEQ Filter Center Frequency: 25Hz to 20kHz, 0.5Hz steps
PEQ Filter Types: Low Pass, High Pass, Peaking Eq, Notch, Treble Shelf,
Bass Shelf
GEQ Filter Gain: ±12dB, 0.1dB steps
GEQ Filter Center Frequencies: 31, 63, 125, 250, 500, 1k, 2k, 4k, 8k, 16k Hz
Speech Output Delay: 0 to 40 mS, 1mS steps
Frequency Response: 20Hz to 20kHz ±0.5dB
S/N Ratio: 90dB, 20Hz to 20kHz A-weighted
THD+N: 0.05%, 20Hz to 20kHz
Connectors
COMP/Pb, Y/Y, C/Pr 1 - 3: (3) sets of (3) BNC female video inputs, each set
configurable as:
• (1) Component/HDTV (YPbPr or RGsB) video input, or
• (1) S-Video (Y/C) input, or
• (1) Composite input
Maximum Input Level: 1 Vp-p nominal (0.7 Vp-p for Pb/B and Pr/R);
Input Impedance: 75 ohms nominal;
Discrete video signal sensing on COMP/Pb and Y/Y
RGB 4 - 5: (2) DB15HD female, RGBHV (VGA) inputs;
Format: RGBHV or RGBS;
RGB Input Level: 0.7 Vp-p maximum;
RGB Input Impedance: 75 ohms nominal;
Sync Input Level: 5 Vp-p maximum;
Sync Input Impedance: 1k ohms;
Video signal sensing on H-SYNC
RGB 5 OUTPUT: (1) DB15HD female;
Buffered RGBHV pass-thru from RGB 5 input
AUD 1 - 5: (5) 3-pin 3.5mm detachable terminal blocks;
Unbalanced stereo line-level audio inputs;
Crestron Electronics, Inc. 15 Volvo Drive | Rockleigh, NJ 07647
Tel: 800.237.2041 / 201.767.3400 | Fax: 201.767.1905
www.crestron.com
Maximum Input Level: 2 Vrms;
Input Impedance: 10k ohms
MIC 1 - 2: (2) 5-pin 3.5mm detachable terminal blocks;
Comprises (2) balanced microphone/line inputs;
Balanced Mic Input Level: -60 to -20 dBV nominal;
Balanced Line Input Level: -28 to +12 dBV; 4 Vrms maximum;
Unbalanced Line Input Level: -34 to +6 dBV; 2 Vrms maximum;
Mic Input Impedance: 10k ohms, accepts 60 to 600 ohm source;
Line Input Impedance: 22k ohms balanced, 11k ohms unbalanced;
Phantom Power: 10 mA (total) @ 48 Volts DC, software enabled
independently to either input
SP AUDIO OUT 1 - 2: (2) 3-pin 3.5mm detachable terminal blocks
comprising (2) speech-channel balanced line-level outputs;
Output Impedance: 200 ohms balanced, 100 ohms unbalanced;
Maximum Output Level: 4 Vrms balanced, 2 Vrms unbalanced
PRG AUDIO OUT 1 - 2: (2) 5-pin 3.5mm detachable terminal blocks
comprising (2) stereo program-channel balanced line-level outputs;
Output Impedance: 200 ohms balanced, 100 ohms unbalanced;
Maximum Output Level: 4 Vrms balanced, 2 Vrms unbalanced
IN 6 - 7: (2) 8-wire RJ45 female and (2) 4-pin 3.5mm detachable terminal
blocks comprising (2) QuickMedia input ports with (2) Cresnet ports;
Connect to Cresnet and QM output ports of other QuickMedia devices via
CresCAT-QM cable*
OUT 1 - 2: (2) 8-wire RJ45 female and (2) 4-pin 3.5mm detachable terminal
blocks comprising (2) QuickMedia output ports with (2) Cresnet ports;
Connect to Cresnet and QM input ports of other QuickMedia devices via
CresCAT-QM cable*
NET: (1) 4-pin 5mm detachable terminal block;
Cresnet slave port, connects to Cresnet control network
Ground: (1) 6-32 screw, chassis ground lug
Buttons & Indicators
PWR: (1) green LED, indicates 24 Volts DC power supplied from Cresnet
control network
NET: (1) yellow LED, indicates communication with Cresnet system
AUDIO BREAK: (1) recessed pushbutton & red LED, enables audio breakaway
in local mode, indicates audio breakaway in system mode
A: (1) pushbutton & red LED, selects audio routing in local mode when audio
breakaway is enabled, selects audio routing view in system mode
V: (1) pushbutton & red LED, selects video routing in local mode when audio
breakaway is enabled, selects video routing view in system mode
SYS: (1) pushbutton & red LED, activates Cresnet system control mode
LOCAL: (1) recessed pushbutton & red LED, activates local front panel
control mode
ENTER: (1) pushbutton & red LED, implements routing set by IN and OUT
buttons in local mode
IN 1 - 8: (8) pushbuttons & red LEDs, select inputs to be routed in local
mode, select routing view for a given input in system mode
OUT 1 - 2: (2) pushbuttons & red LEDs, select output destination(s) in local
mode, select routing view for a given output in system mode
SPEECH AUDIO OUT 1 - 2: (2) pushbuttons & red LEDs, adjust audio volume
of SPEECH channels 1 & 2
PGM AUDIO OUT 1 - 2: (2) pushbuttons & red LEDs, adjust audio volume of
PROGRAM channels 1 & 2
SETUP (rear): (1) miniature pushbutton & red LED, used for touch-settable ID
(TSID)
Power Requirements
Cresnet Power Usage : 30 Watts (1.25 Amps @ 24 Volts DC)
Environmental
Temperature: 41° to 104°F (5° to 40°C)
Humidity: 10% to 90% RH (non-condensing)
QM-MD7X2 7x2 QuickMedia® Distribution Center
Enclosure
Chassis: Steel, black matte powder coat finish, convection-cooled, vented
top and sides
Faceplate: Extruded aluminum, black matte powder coat finish with
polycarbonate label overlay
Mounting: Freestanding or 1U 19-inch rack-mountable (adhesive feet and
rack ears included)
Dimensions
Height: 1.70 in (4.32 cm)
Width: 17.03 in (43.24 cm);
19.0 in (48.26 cm) with ears
Depth: 7.15 in (18.17 cm)
Weight
4.2 lb (1.9 kg)
* For QuickMedia wiring use CresCAT-QM, CresCAT-IM, or quality CAT5e/
CAT6 cable with a delay skew of ≤15nS per 100m; the maximum
aggregate cable length and delay skew between any QM transmitter
(origination point) and QM receiver (endpoint) is 450 ft (137 m) and 22 nS; a
maximum of two QM midpoint devices may be inserted in a given QM signal
path; exceptions apply, refer to each respective product manual for full
detail.
Available Models
QM-MD7X2: 7x2 QuickMedia Distribution Center
Crestron Electronics, Inc. 15 Volvo Drive | Rockleigh, NJ 07647
Tel: 800.237.2041 / 201.767.3400 | Fax: 201.767.1905
www.crestron.com
Typical QM-MD7x2 Application
QM-MD7X2 7x2 QuickMedia® Distribution Center
Crestron Electronics, Inc. 15 Volvo Drive | Rockleigh, NJ 07647
Tel: 800.237.2041 / 201.767.3400 | Fax: 201.767.1905
www.crestron.com
All brand names, product names and trademarks are the property of their respective owners.
©2014 Crestron Electronics, Inc.
Specifications subject to change without notice. 4/10/2014