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Since 1972



  • 32 bit floating point processing
  • Less then 0,5 milliseconds latency
  • delay through processing engine
  • Digital I/O’s are 16/20/24 bit and supports sample freq. from 32KHz to 96KHz
  • Sample rate converters on all digital inputs
  • EQ and Dynamic on all processing channels
  • All faders are labeled
  • Real time info displayed on every module
  • Integrated digital patching system
  • All in/outputs with GPIO’s
  • Remotes with Start, Stop (pulse/continuously)
  • Auto Red light function
  • CobraNet option
  • Fader, Switch or Cue start
  • Word clock out
  • Card reader
  • Ethernet Connector via TCP/IP
D&R Broadcast mixing consoles

LYRA D I G I T A L   O N - A I R   |  P R O D U C T I O N  M I X E R

Looking for a small but powerful digital production ON-Air mixer?

Here it is, your solution with remote control over Internet!


LYRA-4 main
D&R Broadcast mixing consoles
LYRA-4 Extende

4 fader control surface Extender

4 fader control surface

8 Fader control surface

19" rack I/O unit and Core

€ 602,--

€ 930,--

€ 1.390,--

€ 2.605,--

System Highlites

Download this PDF to see how simple you can connect our break out panels to the LYRA I/O back panel connectors.

Break outpanel adapter

Now with OLED displays

LYRA I/O unit

All inputs and outputs have individual GPIO’s on individual sub-D connectors.
There are in total of 18 GPIO’s on the Lyra.
Control of any source is possible, also via the CobraNet interface, when installed.

System description


Digital Desktop mixer

Reporter desk for standalone and/or network applications

Small edit suites

Remote controllable audio work places via Internet/Ethernet/CobraNet

Mobile applications

Two fader remotes available (4 or 8 faders in one remote unit)




6x stereo Dig inputs (AES3)

1x stereo dig input (s/p-dif optical or coax)

6x stereo balanced line inputs

1x stereo unbalanced line input

4x balanced mic inputs + Inserts



6x stereo digital outputs AES3

1x stereo digital output s/p-dif optical + coax

1x stereo Program analog

1x stereo SUB analog

1x stereo CUE analog

1x stereo AUX analog

1x stereo CRM analog

2x stereo PHONES analog


Lyra input module


The Lyra is a fully digital desktop production mixer. Its concept originates from heavy investigations among end users and distributors looking for a versatile compact small universal desktop mixer.

The core of the Lyra is a sophisticated DSP engine. This processing engine involves the latest developments in DSP technology by Texas Instruments.

An intense cooperation between T.I. and D&R has resulted in a digital audio mixer offering tremendous DSP power and a superb sonic quality.

Although the Lyra is a digital console, it is operated with the same comfort as a conventional analog production mixer.

No fundamental concessions have been made towards reliability, high speed controller-response and system stability.

Apart from that there is the unique capability to control Lyra's functions over the Internet



Over 18 inputs (7x digital, 7x analog, 4x mic inputs) are connected to a digital cross-point router to accept various formats of audio.

This router actually is an integrated programmable patch-bay allowing you to send any of the input signals to any desired processing channels of the DSP’s.


The Lyra has a separate control surface that can be controlled up to 10 meters away from the 19”rack mountable in/output interface.

The Lyra accepts all standard input formats ranging from microphone signals, analog line, AES/EBU, S/P-DIF coaxial, S/P-DIF optical.

The 4 mic inputs are electronically balanced and provided with individual phantom power switches and 4 insertion points.
A convenient aspect of the Lyra is that all Mic connectors are on industry standard XLR type connectors, compact 9 pin Sub-D female connectors, cinch, jacks, as well as the usual digital format type of connectors.

On the front panel of the 19” module you can connect your second set of headphones (set one is on the control surface itself).
For easy access we have positioned the analog Cinch in/outputs of input 7 (with level control for the inputs) on the front panel of the 2HE 19”in/output rack. Input 7 is also positioned on the front of the 19” module for easy access.
A digital input (also nr 7) on the front panel of the 19” module gives you S/P-Dif in/outputs.

Four electronically balanced mic inputs with switch-able phantom power on XLR’s complete the front panel input access.

There are also 2 mono inputs available for connecting external Hybrids.



These processing channels consist out of a three band parametric Eq-section and dynamics control application. The signal output by the DSP channel can be routed to main stereo busses.

Every main buss is stereo and has dedicated analog outputs, but the bus signals can also be routed to a digital output as well.

Monitoring functions are analog making interfacing with the outside world very simple and easy to understand.


The Lyra-4 has four processing channels with 100m faders with large illuminated On and Cue switches an a rotary encoder for multiple functions. A LCD per channel shows input selections and many other functions.

In the right hand section of the console are dedicated instant access functions for Source selection, Gain, EQ on/off, Dynamics on/off, Aux, Pan, Program and Sub selection.


The analog master section with 16 segment led bars and source select switches makes interfacing very easy with all sorts of  monitoring devices.

A CobraNet option is available for integration within our network solution to share more sources.

An Ethernet connector is available for remote control via TCP/IP protocol.


The Eq section of the Lyra consists out of a three band full parametric equalizer.

All bands provide a boost/cut of 18 dB max.

A Q-factor between 0.1 and 3 can be set within a frequency range from 10H to 20KHz in the configuration software. This applies for all bands.

The LF-control features a special function.

When attenuating, the LF band functions as a shelving filter. But when amplifying the LF band transforms the shelving function into a bell shaped curve.

This prevents amplification of any unwanted subsonic frequencies.



The dynamic range control is a highly intelligent compressor. A lot of effort has been spent on creating a user-friendly intelligent yet effective dynamics control algorithm.

One single control sets the amount of compression applied.

The absence of ratio’s and thresholds allow fast and ‘instant-result’ adjustments during on-air situations.



The 4 stereo processing channels are fed to the main busses by means of a digital output router. The four system busses are: Program bus, Sub bus, Aux bus and Clean feed bus. The signal on each bus always appears in analog form on a dedicated output.

Lyra output module


 The audio-paths within the Lyra are programmable due to the presence of an input router.
This eliminates the need for an external patch-bay. The input matrix is situated between the input modules and the DSP.
It allows a custom configuration of the various inputs into the 4 stereo processing channels.



Signal processing takes place in one DSP. Processing uses precise floating-point calculations at a word-length of 32 bit.

All audio signals throughout the console preserve their 24 bit resolution from the input conversion. Even 16 bit data streams, like CD-players, have 24 bits reserved.

This way the audio data always preserves the sonic characteristics of the original input signal. Processing includes EQ as  well as dynamics control in all 4 channels.



The outputs of the Lyra are available in analog and digital form. There are six 9 pin sub-D connectors on the back of the 19”rackunit to provide you with all then outputs. Every main buss has its own dedicated analog output. The Lyra features two main outputs in analog and digital format.


Software is included

LYRA Active X application

Full functioning web based control surface

Happy New Year D&R,


As you have noticed we went on with the Lyra system and we are very happy with our purchase, the sound quality is amazing, the fader "feel" is exceptional and the user experience (even for the non experienced producers) is quite simple!


A thank you from Greece


Download Manual 1.06

Download button

Audio Streaming, how does it work

Download Brochure

Download button

Software updates

Download Software

Look at our WIKI page for support and software downloads




The totally software-controlled Lyra secures absolute stability due to the dedicated written DSP software. Via the UTP connector (100 base-TX) you can configure the Lyra with your laptop/PC through a standard Internet web server anywhere on the globe.

Diagnosing is also possible.
















Width= 485mm,







Sub-D 9 to RJ 45 converter

€ 10,00 each

















Technical specifications

MIC inputs




CMRR MIC inputs


Frequency response



Line inputs










Line Outputs










Phones Output







Digital Inputs








Digital outputs




: Electronically balanced

  Input impedance 2k Ohm

  Noise -128dBr (60db gain range)

  Input sensitivity -70dBu up to +20dBu (PAD)

  Total harmonic Distortion+Noise 0,002% at 1kHz G=100

: 85dB @ 1kHz, maximum gain


: 20Hz - 20kHz ± 0.1dBr (sample rate 48kHz)

: Crosstalk 1kHz < -115dBr

: Phantom is switchable +48 Volts


: Electronically balanced

: Input impedance 10k Ohm

: Input sensitivity +6dBu,
  maximum input +26dBu (+/- 20dB gain range).

: Dynamic Range 118dB (AD converter PCM 1804)

: Total harmonic Distortion+Noise 0,004% at 1kHz G=100

: CMRR Line inputs: 30dB @ 1 kHz

: Frequency response 20Hz - 20kHz ± 0.1dBr

  (sample rate 48kHz)


: Crosstalk 1kHz < -120dBr

: Electronically balanced

: Output impedance 50 Ohm.

: Nominal output level +4dBu / -10dBv,balanced
  (optional transformers)

: Dynamic Range 118dB (AD converter PCM4104)

: Total Harmonic Distortion plus Noise 0,001%

: Frequency response 20Hz - 20kHz ± 0.1dBr
  (sample rate 48kHz)


: Stereo unbalanced

: Output impedance 5R Ohm.

: Nominal output level +6dBu, maximum output +26dBu

: Max. Output power, 1W into 32R Ohm, 80mW into 600R Ohm

: Dynamic Range 114dB (AD converter CS4385)

: Frequency response 20Hz - 20kHz ± 0.1dBr (sample rate 48kHz)


: AES/EBU (AES3) or S/P-DIF Transformer balanced

: Input Impedance: 110R Ohm / 75R Ohm (jumper setting)

: Differential input sensitivity 200mV

: Dynamic Range 112dB (AD converter PCM 1804)

: Total Harmonic Distortion plus Noise (sample rate converter)

   -105dBfs (0.001%)

: Sampling rate up to 192kHz



: 112db Dynamic range (DAC CS8420)

: Output Impedance: 110 Ohm

: Output level: AES3 2-5 Vpp

: Clock output 75 Ohm TTL

: 24 bit, 32kHz, 44.1kHz or 48kHz

: Total Harmonic Distortion plus Noise -102dB
































External sync



Power supply








: All GPO’s are by opto isolated relays able to handle

  a maximum of 50V at 200mA or 5V TTL 560R

  (8mA) out

: All GPI’s have a 5V TTL 100kOhm circuitry.

  GPIO-MIC has a 5V/56Ohm LED driver circuit:


: EQ is 3 band, any band can perform one of

  the following functions/specifications:

  Low : +/- 18 dB (120Hz center shelving,

  Q: 0.1 to 10 variable.


  MID : +/- 18 dB (1200Hz center bell,

  Q: 0.1 to 10 variable


  High : +/- 18 dB (12000Hz shelving,

  Q: 0.1 to 10 variable


: Interactive one knob control of threshold,

  compression ratio, expander ratio

  as well as attack and release times.


: 32 bit floating point

: 8 stereo channels per DSP card.


: Level : 0dBu=0.775Vrms

: 0dB internal = -20 dBFs.


: Sample rate: 32kHz, 44.1kHz, 48kHz, +/-


  (internally synchronized)


: 32kHz, 44.1kHz, 48kHz +/- 50ppm

: Jitter max 150pSec


: Internally switched power supply.

: 100-240 Volt, 50/60Hz (1.5 A Max)



: 7436917139114

: 7436917139121

: 7436917139138

: 7436917139145


Radio Play-out software




Radio play-out software


that can work with our keyboardmapper

Aircast logo AERON LOGO SPL Station Playlist Enco radio automation
mairlist radio automation ProppFrexx On-AIR Omniplayer power studio


Freeware Radio play-out software


that can work with our keyboardmapper

ZARA play-out software Play-it radio software

References & Installations



















Some references

we know of

Radio Strefa FM - POLAND

Swedish Radio - Sweden

Kamol Sukosol - Thailand

PSS - Norway

Synchrotec Systems Design PTY - Australia

Multimedia Conseil - France

Mega Audio - Germany

PHF Com - Luxembourg

Real Music - Ukraine

Midi Audio - Lithuania

Jolly pro Audio Broadcast Eng. - Hongkong

MTD - Slovenia

Aerts-Broadcast - The Netherlands

Allba Ljud - Sweden

ASPA - Spain

Audio Sales - Austria

Avation - Singapore

Comtel - Turkey

Corrino Broadcast - The Netherlands

EMS - Africa


J&C Intersonic - Switzerland

MJ Sound Systems - Korea

Mega Audio - Germany

Midi Audio -

Eurocom - France

Music and Images - The Netherlands

Music Exports - Germany

PHF Com -

Preco - UK

PSS - Norway 12 systems

PSS - Denmark (8 systems)

Real Music -

Smart media Solutions -

Synchrotec - Australia

TEDES - Italy

Thelinks - Latvia

Radio Mikro-Welle - Germany

Antwerpen FM - Belgium

Golden Flash - Belgium

URK-FM - The Netherlands

Radio Sochaczew - Poland

Hit FM - France

Beam Radio - Belgium

Harderwijk FM - Netherlands

Radio Hoorn - Netherlands

Locale omroep Krimpen - The Netherlands

Lokale omroep Volendam - Netherlands

Traffic Radio NL - Netherlands

WFM96 Walcheren - Netherlands

RLB Radioattiva - Italy

Radio Dee Jay - Italy

Radio Max - Denmark

radio Sochaczew Poland

radio Sochaczew



LYRA at URK-FM The Netherlands



D&R Adres gegevens

D&R Electronica BV

Rijnkade 15-b


1382 GS Weesp



D&R Telefoonnummer
D&R Mailadres

+31 (0)294 - 418 014

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