AVE DMX-66 User manual

User guide DMX-66 October 2018
Audio Vertriebs
Entwicklungsgesellschaft
mbH
DMX-66
Digital Mixer
with 6 mic/line inputs and 6 outputs
User Guide

User guide DMX-66 page 2
Table of contents
Introductions .......................................................................................................................................................3
Safety instructions ..............................................................................................................................................3
Scope of delivery................................................................................................................................................3
Explanation and description of the DMX-66.......................................................................................................4
Section 1 (user)
Operation of the DMX-66 in user mode..............................................................................................................5
Section 2 (qualified personnel)
Installing the software.........................................................................................................................................5
Programming the DMX-66..................................................................................................................................6
Detailed description of the automatic mixer......................................................................................................10
Technical specifications....................................................................................................................................12

User guide DMX-66 page 3
Introduction
Thank you for choosing the 6-channel digital mixer DMX-66 from AVE.
No matter what your requirements are, due to its advanced technical design, it ensures trouble-free use with
sound exposure in a variety of facilities such as churches, courtrooms, government offices, conference
rooms, schools, universities, etc.
The DMX-66 is equipped with its own software and offers users a wide range of practical functions.
Streaming Media Server:
DMX-66 is a live audio streamer..
It records audio from an input/output channel, encodes it and sends it to a streaming server.
DMX-66 can do live streaming, so people can hear your video while it is being recorded.
It can be used to create an internet radio station or a privately running jukebox and many things in between.
It is very versatile in that new formats can be added relatively easily.
DMX-66 supports open standards for communication and interaction.
DMX-66 supports TCP/IP, UDP, RTSP and RTMP streaming protocols.
Safety Instructions
Located inside the unit are hazardous voltages. Do not remove the cover. Internal modifications or
service work should only be conducted by qualified service personnel.
The DMX-66 comes with an approved power cable. At one end of this cable is a three-pronged AC power
connector (IEC plug) and at the other end of a CE-standard-compliant Schuko-plug for connection to a 230 V
/ 50 Hz AC voltage source. Please ensure that this power supply cable is not damaged. Do not use defective
or damaged power cables!
Scope of delivery
Please check immediately upon receipt the package integrity, the contents for completeness and proper
delivery of the unit.
The delivery scope of the unit includes:
- The DMX-66
- Power supply cable
- Cat 5 cable
Der DMX-66 is delivered with three presets set at the factory.
The presets are located in 11, 12 and 13.
Please keep the operating instructions in a safe place and make them available to qualified personnel for
making necessary changes to the device.

User guide DMX-66 page 4
Explanation and description of the DMX-66
You should acquaint yourself with the different functions and optical circumstances of the device, before you
start programming.
6 Inputs
Volume control, LED for Signal
GAIN control
USB connection
Forward, Play, Rewindf
Volume control
Display MP3 Player
Switch Mic/CD-MP3
Bass
Treble
Volume/Value
Preset/Parameter
Display
Power switch
Power supply
Ethernet
connection
USB
connection
6 Outputs
6 Inputs
DIP-Switch Mic-Lo, Mic-Hi, Line, +48V
DIRECT
Out
Output Rec
Control CD for input
sensitivity
Input CD
Control
+6dB
DIP-Switch CD On-Out

User guide DMX-66 page 5
This manual is divided into 2 sections:
The first section explains how the user can easily and comfortably change the master volume and retrieve the
presets (up to 20) directly on the DMX-66 device without using the laptop or PC. (User Modus)
The second section is intended for qualified personnel, which adjusts the settings via PC or laptop and the
programming of the parameters, the automatic, the matrix and the delays etc.
Section 1
Operation in "user mode"
Input Level 1 –6
By turning the volume control the volume will be increased or decreased.
Input 6 is switchable to CD/USB or Micro/Line.
Control of the master volume
By turning the volume/value control the master volume will be increase or decreased
Select Preset
By turning the preset control the desired preset is selected.
Note
The volume control in "user mode" is restricted in order to prevent operating errors. If the protection is activated,
the volume and preset selection is adjusted by pressing and then turning.
Section 2
The following modifications are only to be performed by qualified technical personnel!
Parameter –Menue / Programming of the DMX-66
You will start the installation program by clicking on the appearing desktop
folder and then clicking on setup.exe
Then follow the installation instructions.
Enter your user name, your organization name and the
license number that was included.
After installation is complete you will have this link on the desktop.

User guide DMX-66 page 6
Before starting programming set the manual functions of the inputs (Advice: volume control
approx. 12 o’clock) and the DIP-switches on the backside. .
.
6 Inputs
Volume control, LED for Signal
GAIN control
USB connection
Forward, Play, Rewind
Volume control
Display MP3 Player
Switch Mic/CD-MP3
Bass
Treble
Volume/Value
Preset/Parameter
Display
Power switch
Power supply
Ethernet
connection
USB
connection
6 Outputs
6 Inputs
DIP-Switch Mic-Lo, Mic-Hi, Line, +48V
DIRECT
Out
Output Rec
Control CD for input
sensitivity
Input CD
Control
+6dB
DIP-Switch CD On-Out

User guide DMX-66 page 7
Programming of the Andante DMX-66
Restart your PC or your laptop, so the program can be executed properly. Use the supplied connector cable
between your laptop and DMX-66. After starting the program klick with the left mouse button File and then New
Projekt.
The following picture appears.
In the menu bar you find under File and Setup,
details for handling the program. Specify the type of the
device and confirm by pressing OK..
Then appears this window. .
Press with the left mouse bottom Setup.
Then appears this window. Click Remote Server and
then OK. Now you are connected with the device.
Note:
If you use a DHPC router connection make sure that the IP number of the router is correct. For this purpose
press the preset bottom twice. Then turn the knob until the IP number appears.

User guide DMX-66 page 8
Input
Press the right mouse bottom to open a pulldown menu. It allows the activation of all nodes or single rows or columns of nodes.
Input option for programmer
to change the volume
at the input.
Clipping indicator
Peak level indicator
On/Out
Parametric EQ
Lowpass/highpass filter
Automixer On/Out
Threshold [dB]
Hold time [ms]
Fader Level setting
Selecting
Hold time [ms]
NOM Gain On/Out
Reducing the level when microphones
are activated simultaneously
Attenuation
Priority
Noise Gate On/Out
Matrix On/Out
Level setting [dB]
Hum filter 160 Hz

User guide DMX-66 page 9
Output
Parametric Equalizer:
5 parameters are available for each input and each output. The settings can be copied to each other input and output.
The same applies to the highpass/lowpass filters.
Band Selection Filter Type
Frequency [Hz] Frequency [Hz]
Gain [dB] Slope [dB/Oct.]
Bandwidth [oct]
Equalizer Copy Filter Copy
Delay [m]
Parametric EQ
Lowpass/Highpass filter
Graphic EQ
Threshold [dB]
Ratio
Post Gain [dB]
Attack Time[ ms]
Release Time [ms]
Insert On/Out
Clipping
Peak Level
On/Out
Level setting
Input option for programmer
to change the volume
at the output.
On/Out

User guide DMX-66 page 10
Each output has a 31 band graphic equalizer. All parameters can be copied to the other EQs or individually
adjusted for each output.
Overview adaptive automixer
Automixer processing is useful in situations where multiple microphones are used, such as in churches, board
rooms, conference rooms or courtrooms. Automixer solves the typical problems that occur when multiple mics
are used.
In fact, the voice signal picked up by multiple microphones suffers from multi-path interference, also called comb
filtering. This multi-path interference affects the quality of the sound source by emphasizing sound at some
frequencies and canceling the sound at others
Moreover, multiple opened microphones could easily create multiple potential feedback loops and consequently
input gain must be limited.
Automixer is a real-time sound algorithm that automatically reduces the level of a microphone's audio signal
when it is not being used and maintain a steady limit on the overall signal level of the opened microphones.
Automixer has the following benefits:
Lowering hiss, rumble, reverberation and other extraneous noise that occur when several microphones operate
simultaneously.
Improving gain before feedback.
Reducing the comb-filtering effect.
Automixer is ideally suited for applications such as churches, board rooms, conference rooms or courtrooms.
Gating
The automixer unit controls the microphone’s state as following:
If the RMS level is above the current adaptive threshold, the microphone’s state is open i.e. the block applies no
attenuation to the signal.
If the RMS level is below the current adaptive threshold, the microphone’s state is attenuated i.e. the block
applies an off attenuation to the signal.
Adaptive Threshold
The internal algorithm dynamically sets the gate threshold level in accordance with the ambient noise. For
example, in a noisy room the automixer would increase the threshold level to prevent any of the microphone
channels from being triggered on by the noise. On the other hand, in a quiet environment, the threshold level
must be lowered.
Off Attenuation
Automixer algorithm attenuates the signal using a ramped gain control. The resulting behavior is a smooth
transition from one state to the other.
Thus, reliable, quick acting, noise-free gating and pleasant sounding turn on and turn off characteristics are
achieved.
NOM Gain
The NOM (Number of Open Microphones) attenuation control circuitry automatically adjusts gain level according
to the number of active inputs. This allows the system to deliver maximum acoustic gain while preventing
feedback.
Last Microphone Hold
Last Microphone Hold feature keeps the most recently activated microphone even if the sound level drops
below the threshold setting.

User guide DMX-66 page 11
Selecting
This LED is on when the microphone channel is gated on.
For those input channels with automixer mode disabled, this LED is always off.
Insert I/O
Turns on/off channel gating. When disabled, the microphone state for this
channel remains bypassed (no automixer mode) at all times and its level
does not contribute to adaptive threshold computing or NOM attenuation.
Hold Time
Sets the minimum time an microphone stays open after the user stops talking
(i.e. RMS input level drops below the adaptive threshold level).
Use this control to prevent the gate from opening and closing due to
momentary pauses in speech.
Typical values are comprised between 1 second and 2 seconds.
Attenuation
The off attenuation parameter allows attenuation of inactive inputs from 0 dB to -60 dB.
When hold time is elapsed, the off attenuation is smoothly inserted.
Practical experience has shown that a 15 dB –20 dB attenuation is a good compromise.
NOM GAIN
When NOM GAIN is active for a channel, the automixer will reduce
the gain for the given channel by 3 dB for every doubling of open channels (-10log(NOM) rule).
The NOM GAIN, if enabled, is singularly applied on each channel.
NOM GAIN Rule
Priority
has relevance to assign preference on opening channels. Compatibly with the actual number of open
microphones, the channels with higher priority will be opened before of the lowest ones.
It does not mean strictly that microphones with higher priority can override ones with lower priority.
Generally, each time two or more channels must be opened, priority level is used to give a precedence order.
Priority increases from 1 (lowest) to 5 (highest).
A special case of priority behavior regards the highest priority that serve to disable all other channels.
With PRIORITY equal to 5, use the additional parameter RESET TIME to determines how long to wait for
channel restoring.Typical values of RESET TIME are between 1 second and 5 seconds.
Application example:
The highest priority reveals useful inside churches during organ playing, where a separate microphone with
PRIORITY equal to 5, placed close to the organ pipes, gates off all microphones in presbyter.
NOTE:
When you set up your mixing system, make sure you get the right gain on the analog input
gain control.
Automixer works better when the gain has been properly set to give the algorithm
adequate signal.
For automixer proper working, best microphone level range is between -40 dB and -10 dB
on Peak Level Meter.
Number of open microphones (NOM)
NOM GAIN
1
0 dB
2
-3 dB
3
-3 dB
4
-6 dB
5
-6 dB
6
-6 dB

User guide DMX-66 page 12
Technical specifications
Analog inputs
Number of balanced inputs 6 (Phoenix 3,5 mm connector)
Number of unbalanced inputs 1 (RCA connector)
Analog gain (manually adjustable) 0 dB - 30 dB
Nominal sensitivity (balanced input) MIV-HI -58 dBu (1mVrms)
Nominal sensitivity (balanced input)MIV-LO -34 dBu (15mVrms)
Nominal sensitivity (balanced input)MIV-HI -19 dBu (87mVrms)
Phantom power (Activating at DIP-Switch +48 Volt stabilized, very low noise
Balanced input impedance (Phoenix) 5 kΩ @ 1 kHz
Unbalanced input impedance (RCA) 33 kΩ @ 1 kHz
Balanced input CMRR <60 dB @ 1 kHz
On Mic (20 - 20 kHz weighted) Rs =150 Ohm -126 dBV
Frequency response MIC (-3dB) 160 Hz bis 20 kHz
Frequency response LINE (-3dB) 40 Hz bis 20 kHz
Input protections radio frequency interference (RFI)
transient voltage spikes
external overvoltage
Analog outputs
Number of balanced outputs 6 + 1 (Phoenix 3,5 mm connector)
Number of unbalanced outputs 1 (RCA connector)
Dynamik range 120 dB (“A” weighted)
Residual noise of output driver -100 dBu (20 Hz ÷ 20 kHz)
Nominal level (balanced output) 0 dBu (7,75 Vrms)
Maximum level (balanced output) 20 dBu (7,75 Vrms)
Balanced output impedance 140 Ω
Unbalanced output impedance 70 Ω
Ausgangsschutz short circuits
Overvoltage protection
Analog to digital converter
Bit resolution 24-bit
Converter type sigma delta
sampling frequency (Fs) 48 kHz
Signal to noise ratio (SNR) 104 dB (“A” weighted @ 48 kHz)
Dynamic range 104 dB (-60 dBFS)
Total harmonic distortion (THD) -93 dB (1 kHz, -1 dBFS)
Oversampling factor 512 Fs

User guide DMX-66 page 13
Digital Signal Processor
DSP 32-bit / 40-bit, Floating point
150 MHz - 6,6 ns cycling rate
Super Harvard Architecture
900 MFLOPS
1Mbits SRAM, zweikanalig
Digital to analog converter
Bit resolution 24-bit
Converter type sigma delta
Sampling frequency (Fs) 48 kHz
Signal to noise ratio (SNR) 112 dB (“A” weighted @ 48 kHz)
Dynamic range 112 dB (-60 dBFS)
Total harmonic distortion (THD) -94 dB (1 kHz, 0 dBFS)
Delay time 0,58 ms
Oversampling factor 512 Fs
Digital Processing
Input
Highpass/lowpass filter Butterworth filter type with adjustable
(anti hum, anti rumble and more ) cutting frequency and selectable slope
12/24/48 dB/Octave
5 parametric equalizuer PEQ Frequency [20 Hz ÷ 20 kHz]
Gain [-15 dB ÷ 15 dB]
Bandwidth [0,01 ÷ 6 oct]
Noise Gate Threshold [-80 dBFS ÷ 0 dBFS]
Hold time [100 ms ÷ 10 s]
Automix function Hold time [100 ms ÷ 5000 ms]
Attenuation [-60 dB ÷ 0 dB]
NOM Gain
(increase post gain
of -3dB for each doubling of opened
automix channels)
Max. opened channels [1 ÷ 6]
Volume control [-100 dB ÷ 10 dB]

User guide DMX-66 page 14
Routing Matrix:
Matrix size 6 inputs / 6 outputs
Matix crosspoint level adjusting [-60 dB ÷ 10 dB]
Audio output
Easy adjustment of the sound columns AT series
AT-N series
ASM series
Live SM series
Konzert SM series
31 bands graphic equalizer Gain [-12 dB ÷ 12 dB]
Dynamic compressor range Threshold [-90 dBFS ÷ 20 dBFS]
Ratil [R=1:1 ÷ R=20:1]
Post Gain [-20 dB ÷ 20 dB]
Attack Time [1 ms ÷ 250 ms]
Release Time [10 ms ÷ 2500 ms]
Limiter Threshold fixed at 0 dBFS
Delay [0 m ÷ 35 m], [0 ms ÷ 100 ms]
Phase control [0°, 180°]
Output level [-100 dB ÷ 10 dB]
Master level [-100 dB ÷ 10 dB]
Data connections
Rear panel ETHERNET 802.3
Wi-Fi 802.11
USB 2.0
Display
LCD 20 characters x 2 lines
PSU Module
AC range 230 VAC ± 10%
Input frequency 47 Hz to 67 Hz
Power consumption max. 33 W
Analog voltages +48 VDC, ±15 VDC, +5 VDC
Digital voltages +3,3 VDC, +1,2 VDC
Voltage regulators linear type (no switching noise)

User guide DMX-66 page 15
Dimensions and weight
Height 44 mm
Width 484 mm
Depth 230 mm + 60 mm Stecker
Weight 4kg
Temperature range
Indoor 0°C to 40°C (32°F bis 102°F)
Zertifizierungen
AES48-2005 grounding scheme
2002/95/EC
CE
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the consequences of use of such information or for any infringement of patents or other rights of third parties
that may result from its use. No license is granted by implication or otherwise under any patent or patent rights
of AVE mbH. Specifications mentioned in this publication are subject to change without notice. This publication
supersedes and replaces all information previously supplied. AVE mbH products are not authorized for use as
critical components in life support devices or systems without express written approval of AVE mbH
Corporation.
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Copyright
© 2015 AVE mbH. All rights reserved
Consulting • Planning • Developing • Assembly of electroacoustic sound systems
AVE GmbH • Gustav-Rau-Straße 6 • 74321 Bietigheim-Bissingen • Germany
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