background image

Duet

LECTROSONICS, INC.

4

Duet System Overview

The M2 Duet digital IEM system is designed and 

developed with the professional touring, installation, 

theater and broadcast customers in mind. Convention-

al in-ear wireless monitor systems rely on decades-old 

technology: FM transmission with multiplexed, com-

panded audio. The M2 System employs unique digital 

technology to provide ruler-flat frequency response 

from 20 Hz to 15 kHz, wide dynamic range with no 

compression, and maximum channel separation for 

rock-solid stereo imaging or reliable mono opera-

tion with no crosstalk. In addition, the digital audio 

eliminates a compandor and the associated artifacts. 

The result is crystal clear sound and extremely low 

distortion of <0.15% with extremely low latency. The 

transmitter and receiver housings are all-metal for 

maximum durability. 
The system tunes across six standard frequency 

blocks, or from UHF frequencies from 470.100 to 

607.000 MHz (up to 614.375 for the EU version). This 

allows a wide selection of operating frequencies for 

larger systems, and helps avoid interference, even in 

crowded RF environments.
The M2T Digital Half-Rack Transmitter can accept up 

to four analog or digital Dante™ (optional) network 

audio inputs to deliver two stereo or four mono audio 

feeds over two independent RF carriers. A 2-way IR 

port enables quick, trouble-free setup while a large, 

high resolution, backlit LCD and large membrane 

switches provide an intuitive interface that is highly vis-

ible in daylight or dimly lit conditions.
The input connectors are full size XLR/TRS combo 

types for balanced line level analog signals. Input pre-

amp circuits use a special balanced amplifier with very 

high common mode rejection to minimize hum and 

noise. Analog signals are converted to an internal 24-

bit digital format which is then encoded, organized into 

packets, and passed to an RF modulator. The modu-

lated RF signal is filtered before and after amplification 

to suppress out-of-band noise and spurious signals.
The M2R Digital IEM Receiver is a compact, rugged 

body-worn unit providing studio-grade sound qual-

ity for performers or any professionals needing to 

monitor detailed audio wirelessly. The M2R employs 

advanced antenna diversity switching during digital 

packet headers for seamless audio. The headphone 

jack is fed from a high-quality stereo amplifier with 250 

mW available to drive even inefficient headphones or 

earphones to sufficient levels for stage performance or 

other noisy environments. The receiver can select from 

stereo, mono from left or right channels only, or mono 

from both channels, giving the unit flexibility in terms of 

application as an IEM or IFB receiver. An intuitive inter-

face and high resolution, color LCD on the unit provide 

performing artists and audio professionals alike with a 

comfortable and confident user experience.

What is Dante?

Audinate’s patent pending Dante™ technology is a 

flexible Internet Protocol (IP) and Ethernet based 

digital AV network technology that eliminates the many 

bulky cables needed to provide point-to-point wiring for 

analog AV installations.
With Dante, existing infrastructure can be used for 

high performance audio as well as for ordinary control, 

monitoring or business data traffic. Digital networks 

utilize standard IP over Ethernet offering high band-

width capable of transporting hundreds of high quality 

channels over Gigabit Ethernet.
Set-up and configuring the system is made easy as 

well, saving enormous installation costs and long term 

cost of ownership on a digital network. The physical 

connecting point is irrelevant: audio signals can be 

made available anywhere and everywhere. Patching 

and routing now become logical functions configured 

in software, not via physical wired links

Summary of Dante Benefits

• 

Plug-and-play technology – automatic discovery  

        and simple signal routing
• 

Reduced Cost & Complexity- No special skills  

        required to set up audio networking
• 

Sample accurate playback synchronization

• 

Add/remove/rearrange components at will

• 

Deterministic latency throughout the network

• 

Support mixed bit depths and mixed sample  

        rates over one network
• 

Scalable, flexible network topology  supporting a  

        large number of senders and receivers
• 

Supports 1Gbps networks

• 

Supports a single integrated network for audio,  

        video, control, monitoring
• 

Uses inexpensive, off-the-shelf computer  

        networking equipment

Summary of Contents for M2R

Page 1: ...Digital IEM System INSTRUCTION MANUAL Rio Rancho NM USA www lectrosonics com Fill in for your records Serial Number Purchase Date ...

Page 2: ...9 The blue link LED on the top of the receiver should light up indicating an RF link 6 Send Audio Send an audio signal to the transmitter and adjust the send level from your mixer until the audio meters on the transmitter show good level The peaks should be close to the top of the scale but not over and the average should be above the 20 mark The receiver audio meters should also respond to the au...

Page 3: ...phone Volume Adjustment 17 Dante Ports optional 17 Ethernet Port 17 Power Inlet 17 Navigating the Menus 17 M2T LCD Menu Map 18 Menu Item Descriptions 19 RF Enable Level 19 RF Tuning 19 Sync Scan 19 Sync Settings 19 Sync FlexList 19 Audio Level Trim 19 Audio Input Type 20 Audio Polarity 20 Headphone Monitor 20 Front Panel Setup 20 Network Settings 20 Edit Names 20 Restore Defaults 20 About 20 Links...

Page 4: ...e sound qual ity for performers or any professionals needing to monitor detailed audio wirelessly The M2R employs advanced antenna diversity switching during digital packet headers for seamless audio The headphone jack is fed from a high quality stereo amplifier with 250 mW available to drive even inefficient headphones or earphones to sufficient levels for stage performance or other noisy environ...

Page 5: ...avily populated by high power TV transmissions The TV signals are im mensely more powerful than a wireless microphone or IEM transmitter signal and will enter the receiver even when they are on significantly different frequencies than the wireless system This powerful energy ap pears as noise to the receiver and has the same effect as the noise that occurs with extreme operating range of the wirel...

Page 6: ...Duet LECTROSONICS INC 6 M2R Receiver Operation USB port Battery compartment door Belt clip mounting sockets Headphone output IR infrared port On Off and volume knob RF Link LED Battery status LED ...

Page 7: ...e Knob Turns unit on or off and controls headphone audio level IR infrared Port Settings including frequency name limiter mix mode etc can be transferred between transmitter and re ceiver FlexList profiles can be gathered by the receiv er Frequency scan information can be sent from the receiver to the transmitter and on to Wireless Designer software for coordination purposes Headphone Output A rec...

Page 8: ...scale indicates the incom ing signal strength in microvolts from 1 uV at the bot tom to 1 000 uV 1 millivolt at the top Diversity activity The two antenna icons will alternately light up depend ing on which one is receiving the stronger signal Battery Life Indicator The battery life icon is an approximate indicator of the remaining battery life For the most accurate indication the user should sele...

Page 9: ... to the menu map on the following page Press MENU SEL to enter the menu Press BACK to return to the previous screen Press MENU SEL to enter the setup of the highlighted item Press the UP and DOWN arrows to navigate and highlight the desired menu item Submenus and screens for the selected item Decision prompts to save settings Press the UP and DOWN arrows to navigate and highlight the desired selec...

Page 10: ...pLR Use arrow keys to select mixer option SEL pause scan Use arrow keys to tune to desired frequency BACK Press BACK to keep or revert back to old frequency Keep Revert Keep scan freq Delete Clear All SEL BACK Battery Type Use arrow keys to select battery type for accurate battery level indication Alkaline Lithium Battery Type SEL BACK SEL BACK Lock Unlock About M2R Use arrow keys to lock or unloc...

Page 11: ...P and DOWN arrows to roughly tune the receiver by moving the cursor to an open spot Press MENU SELECT to zoom in for fine tuning Use the UP and DOWN arrow keys to move the cursor to open frequency When a usable frequency has been selected press the BACK button for the option to keep your newly se lected frequency or to revert to where it was set before the scan To capture this scan info in the tra...

Page 12: ...rformed via the IR port Delete Remove a mix from the Flex List Clear All Remove all mixes from the Flex List Frequency Allows manual selection of the operating frequency in MHz and KHz tunable in 25 kHz steps Vol Bal Displays the volume from 0 to 100 and adjusts the balance to left right or center Mixer Mode This screen allows you to choose a stereo mix mono mix from either audio channel 1 channel...

Page 13: ...dB and set the threshold for 3 or 6dB HF Boost Adjusts loudness of higher frequencies in the audio output as preferred by the listener Corner frequencies of 5 KHz or 7 KHz can be selected and boosted Meter Mode Changes the appearance of the audio level indicator on the main window can show either pre or post mix audio levels Clear Scan Data Erases scan results from memory Backlight Selects the len...

Page 14: ...er and the versions for both FPGA and main firmware running in the receiver Default Returns all settings to the factory defaults as shown in the table below Menu Item Setting Flexlist Cleared Vol Bal Centered Mixer Mode Stereo Limiter Pregain 0 HF Boost 0 Meter Mode Post Mix Backlight Always On Battery Type Lithium Settings Unlock Receiver Name M2R IEM Receiver Frequency 512 000 ...

Page 15: ...Digital IEM System Rio Rancho NM 15 M2R Accessories 26895 Wire belt clip 21926 USB cable for firmware updates ...

Page 16: ...r Inlet Menu navigation buttons Power switch Return to previous screen IR Port Headphone Volume Adjustment Dante Ports Ethernet Port Antenna Jack Headphone Jack Reset Button M2T Front Panel M2T Back Panel Menu Select Channel Function Buttons XLR TRS Combo Analog Input Connectors ...

Page 17: ... Software Power Inlet The threaded locking DC coaxial jack accepts 9 18 VDC and draws 1 2A maximum Power Screens When powering on the M2T there are three screens that appear in the following order Duet Lectrosonics RF On Off WARNING If RF ON is selected and the user chooses to Do Not Show Again RF transmissions will be on when M2T is powered on and may interfere with frequencies already in use Thi...

Page 18: ...INGS Use arrow keys to select desired sync command Press SEL to select desired function Use arrow keys to adjust setting Press SEL to select desired function Use arrow keys to select desired audio setting Press SEL to select desired channel Use arrow keys to select desired channel Press SEL to engage function Use arrow keys to select desired audio setting Press SEL to select desired channel Use ar...

Page 19: ...ert user if scan is unsuccessful Sync Settings Allows sending or retrieving setup data via IR port Sync FlexList FlexList allows the user to set up a list of profiles by name in the receiver This allows quick and easily ac cess to listen to any of the mixes on site After putting the receiver into Sync Flex mode choose the function add update and then use the transmitter to send the profile over IR...

Page 20: ... user to set IP address or other network set tings when needed NOTE New network settings require the unit to reboot to take effect Making a change and pressing the BACK key will prompt the user to Reboot Now Save and Exit or Discard and Exit Edit Names Edit names to match talent for easy location in the FlexList or easily identify multiple M2T transmitters in a rack Use UP and DOWN Arrows to selec...

Page 21: ...ment items shipped to your location Items Included in the Box Instruction manual DCR15 4AU Power supply cable 21926 USB cable 35800 Hex L key wrench 25990 Bracket rear tie 25991 Bracket front tie 27076 Rack flange bracket 27082 Rack handle 28885 4 SCR10 cap screw 35664 4 Rubber foot large 35959 Hole plug A500RA20 2 Antenna 35800 Hex L key wrench 25991 Bracket front tie 27076 Rack flange bracket 27...

Page 22: ... and levering the tabs away on each side of the unit 3 Insert the Flange Bracket Part 27076 into the open slot in the side of the Chassis Cover Panel 4 Insert two 2 Cap Screws Part 28885 through the Rack Handle Part 27082 holes and install the Rack Handle onto the Flange Bracket through the holes in the unit s front panel Firmly tighten the Cap Screws using the long leg of the Hex Wrench as shown ...

Page 23: ...e two 2 inboard Cap Screws from the rear of the two 2 units to be co joined Install the 25990 Rear Tie Bracket to the rear panels of the two 2 units reusing the four 4 Cap Screws previously removed and firmly tighten with the Hex Wrench See rear view image above The co joined dual racked M2T units are now ready for installation into a rack NOTE If supplied rubber foot feet are installed on under s...

Page 24: ...rd Kit Included in Dante Model RMPM2T 1 Rack kit for mounting one M2T into a single rack space SNA600a Antenna SNA600a Accessories ARG 15 A 15 foot antenna cable of standard RG 58 coax cable with BNC connectors at each end ARG 25 ARG 50 ARG 100 Antenna cable of Belden 9913F low loss coax cable with BNC connectors at each end Number specifies length in feet ...

Page 25: ...ut Two carriers two audio channels each Power adjustable on each carrier to 10 25 or 50 mW Antenna Output 2 x BNC sockets Operating Frequencies 470 100 607 975 MHz Frequency Selection Steps 25 kHz Frequency Stability 0 002 Modulation 8 PSK Emission Designator 200KG7E Spurious Radiation Compliant with ETSI EN 300 422 1 Equivalent input Noise 128 dBV Audio Frequency Response 20 Hz 15 kHz Audio Input...

Page 26: ...taller and follow the screen prompts I Agree on the EULA end user license agreement must be checked to continue the installation The installer includes USB drivers which only need to be installed once By default the boxes are unchecked in the installer because they are not required except for the very first time the software is installed on the computer being used If it is the first time the softw...

Page 27: ...our Applications folder Double click Wireless Designer to launch it The first time you launch it you may receive a Wireless De signer can t be opened warning If so click OK to dismiss the warning and perform the following steps immediately Open the Apple System Preferences application and double click the Security Privacy icon Near the bottom of the Security Privacy pane you should see the message...

Page 28: ... consulter le document CPC 2 1 28 d Industrie Canada intitulé Délivrance de licences sur une base volontaire pour les appareils radio de faible puissance exempts de licence et ex ploités dans les bandes de télévision Per RSS Gen This device complies with Industry Canada s license exempt RSSs Operation is subject to the following two conditions 1 This device may not cause interference 2 This device...

Page 29: ...he steps below A DO NOT return equipment to the factory for repair without first contacting us by e mail or by phone We need to know the nature of the problem the model number and the serial number of the equipment We also need a phone number where you can be reached 8 A M to 4 P M U S Mountain Standard Time B After receiving your request we will issue you a return authorization number R A This nu...

Page 30: ...Duet LECTROSONICS INC 30 ...

Page 31: ...Digital IEM System Rio Rancho NM 31 ...

Page 32: ...onics Inc or an authorized dealer shipping costs prepaid within one year from the date of purchase This Limited Warranty is governed by the laws of the State of New Mexico It states the entire liablility of Lectrosonics Inc and the entire remedy of the purchaser for any breach of warranty as outlined above NEITHER LECTROSONICS INC NOR ANYONE INVOLVED IN THE PRODUCTION OR DELIVERY OF THE EQUIPMENT ...

Reviews: