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Meter wiring 

 
 

The “A-MTR” feed is a buffered output designed to drive the VU meters and 

headphone amp in the 

MQ

 metering and cue box. The feed can also drive a standard VU 

meter circuit. The 

Monitor

’s D/A is calibrated so that a digital sine wave of 1 kHz 

frequency at -14dBfs will provide a +4dBu signal level. Calibration tones are available 
from the oscillator in the DAW or a test CD. 
 

 

 

Standard VU meter circuit 

 
The selected Digital Input to be monitored is fed to the “D-MTR” XLR on the rear panel. 
This output is a standard AES digital output that goes to 

MQ

’s AES input or another 

digital meter or phase scope. 
 
 

Interface 

 

 

The following section is intended to help installers set the system up for quiet, 

dependable operation. If trouble is encountered setting up the Monitor, the suggestions 
may help in understanding the issues and resolving the problems. The techniques 
discussed while not infallible, have been used for many years by the engineers at 
Dangerous Music with a fantastic success rate setting up dozens of world class facilities.

 

 

 

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Summary of Contents for Dangerous Monitor

Page 1: ...ment that brings you the highest quality for your purchase This manual will assist you in the installation and use of the Monitor There are helpful hints for safety grounding and terminology that appl...

Page 2: ...r supplies at least several rack spaces if not in a different rack away from equipment that deals with low level signals Separation of high level and low level equipment can pre empt trouble caused by...

Page 3: ...y between the converters in separate pieces of gear Many times the engineer can be fooled by differences in sound quality of clones DAT from a CD because the different brands of equipment don t sound...

Page 4: ...drive power amplifiers These feeds are balanced and low impedance feeds capable of driving long cables The AC IN jack is where the power supply cable goes It is best to make sure that the power supply...

Page 5: ...control is a 21 position stepped attenuator It was decided in the design process to use an attenuator for its accuracy and repeatability It was also found that attenuators provide consistent sound qu...

Page 6: ...ed Digital Input to be monitored is fed to the D MTR XLR on the rear panel This output is a standard AES digital output that goes to MQ s AES input or another digital meter or phase scope Interface Th...

Page 7: ...s stay put inside their respective pieces of gear Unbalanced Audio Connections An unbalanced source driving a Monitor input usually presents no problem because of the differential action of the input...

Page 8: ...fest themselves as burn marks and smoked components This type of damage is not covered by the warranty Input cable Shield Header Jumpers are on the main circuit board to facilitate proper system shiel...

Page 9: ...t and recording equipment manufacturers from the 50 s to the 80 s had chapters on how to fix hum and noise problems and it is from this wealth of information that this writer draws ideas from for trou...

Page 10: ...uble shooting buzz issues is to make a short XLR cable with the shield lifted on the male connector and use this to test whether or not an XLR interface warrants a shield lift Alignment The Dangerous...

Page 11: ...eally Pin 1 shield Pin 2 signal Pin 3 signal The A MTR jack is a male 6 pin XLR A breakout cable is provided with the unit but one can roll one s own with the following pinout Pin 1 Left shield Pin 2...

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