Audio Processor AXEL-FALCON X6

Audio Processor AXEL-FALCON X6

FM / DAB + / HDRadio / WEB / DRM Digital Audio Processor 5 bands. 1RU. Analog, digital AES and streaming I / O. 2x MPX output. Audio and MPX switching. SD slot for storing files for audio backup.

  • High-quality hardware design and software algorithms produce detailed sound on any speaker system while retaining the original audio signature.

  • A dedicated processing section increases the presence of the voice. Vocals are always on top of the mix, making lyrics comfortably audible. Each instrument and singer gains dominance of their own space.

€2,515.50 No tax €2,795.00
Size chart
Women's clothing size
Euro 32/34 36 38 40
USA 0/2 4 6 8
Bust(in) 31-32 33 34 36
Bust(cm) 80.5-82.5 84.5 87 92
Waist(in) 24-25 26 27 29
Waist(cm) 62.5-64.5 66.5 69 74
Hips(in) 34-35 36 37 39
Hips(cm) 87.5-89.5 91.5 94 99
How To Measure Your Bust

With your arms relaxed at your sides, measure around the fullest part of your chest.

How To Measure Your Waist

Measure around the narrowest part of your natural waist, generally around the belly button. To ensure a comfortable fit, keep one finger between the measuring tape and your body.


Audio Processor AXEL-FALCON X6

Axel Tech FALCON features full connectivity with analog and digital audio I/O (over XLR connectors), 2 independent MPX outputs, USB, GPI and serial ports. The hardware bypass circuit is included in order to guarantee audio presence and programs continuity. 

The LAN port and the built-in Web Server allow to control the processor and tune audio from anywhere. The built-in digital Stereo Generator ensures an extremely precise MPX Signal. Composite Clipper, part of the Stereo Generator circuit, grant the maximum modulation level, according with the technical rules around the world. This allows each radio station to build their unique sound shape. 

The embedded RDS Encoder performs a full digital processing, in compliance with RDS 2.0 (UECP SPB490), and provides 2 Data Set with a wide range of static services, including Radio Text. The logging of output signal is a native feature and give many information about signals parameters. Stored information and time span can be customized and depend on the archiving size of the SD-Card or the USB flash drive.

Audio processing functions are all fully customizable: 5 bands compression control, adjustable drive and threshold, dual band ACG, 3 bands equalization (Low, Mid and High frequency) and brightness control. The mono sounds phase control allows to give to the human voice a more natural and pleasant sound shape. The final limiter enhances the sound presence.

40 memories allow to recall factory pre-sets or save new one to be restored according to customer needs.

The FALCON processors are equipped with a universal 90-260 V AC power supply, working at 50 or 60 Hz, ready to be used in every country around the world. Due to the low power consumption (max 15 W) FALCON can be considered a “green” equipment.

The FALCON robust design finds substance from the extensive use of steel and aluminium. FALCON appliances are immune to strong electro-magnetic fields and are suitable to be installed in extreme environments. 

A dedicated digital test signal generator can send to all the physical outputs (analogue, digital and MPX) signal sample with variable frequency and amplitude, that helps to calibrate the whole audio system.

The Falcon X Series

Different users have different needs. This is the reason why AxelTech feature a whole processors family with various models suitable for specific workflows. FALCON X7 is the full option version while FALCON X6 is the same model but without the controls on the front panel, suitable to be remotely installed anytime we need to manage remotely the appliance via WEB interface.


The new FALCON audio processors integrate, as usual for AxelTech, many accessory features mandatory in the radio workflow - such as the RDS coding and Stereo Generation - but also looking at the innovative technologies - such as DAB and audio over IP.

FALCON series equipment ensures top quality performances and exclusive audio. It features powerful DPSs, 5-band architecture, dual band AGCs, 3-band equalizer, stereo enhancer, speech detector and 5 limiters. The comprehensive and accurate control of each audio parameter allows to shape perfectly the audio to broadcast unique and exceptional branded sound.


Extended Changeover/Silence Detector with configurable source priorities out of 11 sources:

1xAnalog, 2xAES/EBU, 2xIP, 2xMPX, 1xAES192, 1xDante, 1xMPX over Dante, 1xInternal Player



1xAnalog, 2xAES/EBU, 2xIP, 2xMPX, 1xAES192, 1xDante, 1xMPX over Dante



Suitable like a backup source or for test purpose.

A Test Signal Generator is also available.



(Simple Network Management Protocol)

Allows data interchange and simplified configuration of third-party appliances connected in the same LAN using shared datasets MIB.



Manages the routing of MPX signals for Advertisement Area Splitting.


Dynamic RDS fully supported, UECP Input implemented, 8 Datasets available.

Suitable for network infrastructures.



Internal SD card whit OS for Disaster Recovery.

Easily Upgradable via WEB or Windows application.



Can manage an audio stream like an input, can generate an output audio stream.





The whole system can be managed through a WEB page generated by the internal web Server.

The main functions can be managed through the physical panel.

Advanced features


A configurable delay (from 0 to 10”) can be applied to the FM process in order to synch with those

distribution channels having a significant latency like the DAB.



15 KHz processing allows to use it as FM Audio Processor.

20 KHz processing for digital broadcasting, allows to use it as DAB Audio Processor, HD Radio Audio Processor, Sirius XM Audio Processor, Web Radio Audio Processor.



EBU R 128 and ITU-R BS.1770-4 Loudness Recommendations available for digital and analog radio processing chains compliant with every country loudness rules.



ITU BS.412 MPX Power Loudness Recommendations available for MPX processing chains compliant with every country loudness rules.



DanteTM option (compliant with AES67) provides an Ethernet connection for 1 Stereo Input and 1 Stereo Output, with independent and dedicated Level Control and Sample Rate Conversion.


MPX over AES 192 (AES3)

This is the standard for exchange the digital MPX+RDS signals between professional audio devices.

192 kHz standard is supported by several transmitter manufacturers.


The RDS encoder is compliant with the major international standards:

UECP EBU SPB490 v7.05 and Cenelec in Europe and NRSC in the United States.

The new "dynamic" features allow to manage many kinds of services:

PS, RT, RT+, PTY, PTYN. Connecting the Falcon with the radio automation software it can manage many additional information such as song title, song artist, on-air program, speaker's name, etc. The native interface with RSS feed format allows receiving directly news feeds and it is RDS 2.0 ready.



The Advanced Audio Changeover/Silence Detector is able to switch between any available input source:

Analog, Digital, MPX, FM, IP, DanteTM, Internal Audio Player.



Processing delay is quite non audible and depends on the processing complexity.

Signal Routing and Changeover

The new FALCON processor includes a technologically advanced Audio Changeover/Silence Detector able to switch between any available source: Analog, Digital, MPX, FM, IP, AoIP…

In case of missing audio from any external sources, the processor can play the playlist stored in the microSD or USB Flash drive.

It's possible to add up to 10 seconds delay to MPX output to synchronize DAB signal (connected to analogue or digital output) to FM signal connected to MPX output. An embedded Test Signals Generator allows to output an audio signal suitable for testing the equipment or the whole audio system.

I/O Connections

  • Axel Tech FALCON Audio Processor new series features a complete set of input and outputs connections. Analog and AES/EBU digital audio connections are standard aside of two buffered and independent multiplexed output (MPX+RDS) whit hardware bypass.
  • Analog Input > Analog Output | Digital1 Input > Digital1 Output | MPX1 Input > MPX1 Output | MPX2 Input > MPX2 Output
  • Three USB ports (one on the front, one on the rear panel and one installed on the internal circuit board), allow to update the firmware, record system logs and play audio tracks. microSD allows to clone the whole setup from one Falcon to another one.
  • Two AUX inputs (SCA) allows to connect an external RDS encoder. Another AUX input can receive the audio from another MPX processor and switch with the internal generated MPX, allowing to build a small network managed from radio automation system. Connection setup includes a Dante license that allows to manage AoIP Dante or AE67 signals: 4 inputs and 4 outputs.

Front Panel

  • FALCON X7 features a wide LCD monitor, TFT Technology (480x128) that shows the input and output processing, including the corrections for each band featured from the compressor, the limiters and the multiband AGC.
  • Obviously it shows also the input and output of all signal levels.
  • Moreover trough the display it’s possible to check the system status: operating parameters, GPI/O port status and RDS parameters, including the station's ID.
  • A TRS (stereo Jack 6,3 mm) connector allows monitoring both original and processed signal, checking in the faster way the differences between the available pre-sets.

Communications & Alarms

  • FALCON audio processors can exchange information with other equipment through some communication ports:
  • One LAN/WAN port, two RS-232 serial ports, two USB ports, one GPIO port with optical coupler and relays.
  • Information will be sent (status, alarms) or received (commands).
  • A panel with 40 LEDs (the LCD panel in the bigger model) shows status information.
  • Alarm messages can be sent via GPO, SNMP (Trap), http and email.

Web Server

  • Users can manage FALCON equipment via LAN, no need to install any client software.
  • The internal Web Server can be managed with any browsers (Chrome, Firefox, Explorer, Opera…). The GUI on the web page is clear, easy to use and responsive, suitable to be managed from any device: Personal Computers, tablets, smartphones.
  • SNMP (v 2.0) programming protocol allows to manage the whole command set.

FALCON firmware implements also HTTP, FTP, SNMP, SMTP, UDP, TCP and is PV4 – IPV6 addressing compliant. RDS services need a precise synchronization: the system tries to connect to a primary NTP, backup NTP and to an external GPS receiver (not supplied).

Moreover connecting an external GPS allows to geo-localize the FALCON. The WEB server supplies a page with a map that shows the appliance position. 

Standard Ethernet interface can manage up to 4 independent TCP ports, up to 4 separate UDP ports and 1 SNMP port. Obviously, it shows also the input and output of all signal levels. Trough the display it’s possible to check the system status: operating parameters, GPI/O port status and RDS parameters, including the station's ID. A TRS (stereo Jack 6,3 mm) connector allows monitoring both original and processed signal, checking in the faster way the differences between the available pre-sets.

MPX Stereo Generator

  • The stereo generator integrated in the DSP structure, provides an almost ideal MPX signal, optimizing the performances of the equipment to the maximum.
  • All of the parameters for pilot level, phase and levels are adjustable via the web page.
  • Stereo Generator circuit can switch the source between the internal MPX and an external signal. Switch can be managed locally or with a command sent by an external radio automation software via Ethernet or GPI.

RDS Radio Data System Encoder

  • FALCON RDS embedded circuit is compliant with the latest standards: UECP EBU SPB490 v7.05), Cenelec (Europe) and NRSC (USA).
  • The new "dynamic" feature allows to manage many kinds of services: PS, RT, RT+, PTY, PTYN.
  • Connecting the RDS with the radio automation software it can show many kinds of information: song title, song artist, on-air program, speaker's name, etc.
  • The native interface with RSS feed format (RSS 2.0) allows receiving directly news feed.

The internal RDS embedding give more advantages:

> Allows to remove a separate appliance from the transmission chain

> Concentrate the control of all the broadcasting parameters just in one equipment

> Raise the output signal signal/noise ratio and stability

> Remove all the locking problems between the pilot phase and the RDS carrier phase


  • Stereo Enhancer
  • Mode, Band, Effect Limiter, Effect Drive, Effect Depth
  • Pre-Process Equalizer
  • Low Band, Mid Band, High Band
  • Speech Detector
  • Mode
  • Action


Compressors Controls

  • Threshold (for each of 5 bands)
  • Drive (for each of 5 bands)
  • Multiband Proc. Type
  • Multiband Coupling



  • Final Limiter Bass Drive
  • Final Limiter Main Drive
  • Main/Bass Mix Balance
  • Limiters Look Ahead Detail
  • Super Bass
  • Expander
  • Process Brilliance
  • Overdrive
  • Wide Process Brilliance Attenuation
  • Audio Processing PresetsThe right sound for your radio in a few clicks, with our factory presets
  • Falcon processors are factory populated with 60 presets belonging to 10 families, allowing sound engineer to rapidly find the desired sound.


Each preset family has 6 different flavours:


EFX - Effect Extension


Compressed EFX - Effect Extension

Highly Compressed

Highly Compressed EFX - Effect Extension


Presets families:

General Purpose. This is a preset able to offer the maximum to a radio with a schedule made of music, news and talk. Moderate AGC response, Mid/High density and compression.



  • The best preset for Ambient, Lounge, Chillout and Fusion music.
  • Very slow AGC, warm & detailed sound and a low compression.


  • Base preset for Rock and Classic Rock music. Mid compression and fast AGC.

Hard Rock

  • Base preset for Hard Rock and Heavy Metal music. Low compression and fast AGC.


  • Base preset for Country and Folk music. Low compression and fast AGC.


  • Let’s dance, with this preset for Disco music. Low compression and fast AGC.


  • Base preset for Oldies music, with Low compression and fast AGC.


  • Typical preset for Talk radio and Talk programs, with low compression and fast AGC.


  • A very gentle preset suitable for Classical music and Opera, with low compression and fast AGC.


  • Designed for thematic radios focused on 70s-80s Pop music with, low compression and fast AGC
  • And then you can extend these presets by adding new families and variants

Technical Specifications

  • Analog Input - AUDIO     
  • Connectors: Balanced on 2 XLR – EMI Suppression
  • Nominal Input Level (sensitivity): Adjustable via software: -12dBu : +13dBu
  • Level range: –21,0 dBu ÷ + 24,0 dBu
  • Input level max.: +24,0 dBu
  • A/D Conversion: CS4272 DAC 24bit 192KHz
  • CMRR input: >60 dB (20 Hz ÷ 20 kHz)

Digital Input – AUDIO     

Inputs Number: 2

  • Connectors: Balanced on 1 XLR – EMI Suppression
  • Input impedance: 110 Ω
  • Format: AES3/EBU & SPDIF
  • Sample rate: 32/44.1/48/64/88.2/96/192 KHz
  • Nominal input level (sensitivity): From -0,1 dBFs to –25dBFs (0,1dB step)
  • Level range: 0,0 dBFs ÷ -36dBFs
  • Conversion dynamic range: 124 dB (32 KHz) | 126 dB (44,1 kHz) | 126 dB (48 kHz) | 122 dB (96 kHz)
  • Conversion resolution: 24 bits


  • Connectors: Balanced on 1 XLR – EMI Suppression
  • Input impedance: 110 Ω
  • Format: AES3/EBU & SPDIF
  • Sample rate: 192 KHz
  • Nominal input level (sensitivity): From -0,1 dBFs to –25dBFs (0,1dB step)
  • Level range: 0,0 dBFs ÷ -36dBFs
  • Conversion dynamic range: 124 dB (32 KHz) | 126 dB (44,1 kHz) | 126 dB (48 kHz) | 122 dB (96 kHz)
  • Conversion resolution: 24 bits


  • Connectors: Unbalanced on 2 BNC – EMI Suppression
  • Input impedance: 50 KΩ
  • Nominal input level (sensitivity): Adjustable from -6,0 dBFs to +13,0 dBFs
  • Conversion dynamic range: PCM4220 24bit 216KHz
  • Level range: -21,0 dBu ÷ +24 dBu

Analog Output - AUDIO     

  • Connectors: Balanced on 2 XLR – EMI Suppression
  • Output impedance: 47 Ω
  • Output Level: Adjustable software from -6dBu a +18, 0 dBu
  • Level Range: –20,0dBu ÷ + 24,0dBu
  • Output Level Max.: + 24,0dBu
  • CMRR Output: >60dB (20Hz-20kHz)
  • D/A Conversion: CS4272 DAC 24bit 192KHz

Digital Output - AUDIO     

  • Outputs Number: 2
  • Connectors: Balanced on 1 XLR – EMI Suppression
  • Input impedance: 110Ω
  • Format: AES3/EBU
  • Sample rate: 32/44.1/48/64/88.2/96/192 KHz
  • Output level adjustment: Da 0,0dBFs a –dBFs (passo 0,1dB)
  • Level range: 0,0 dBFs ÷ -36dBFs


  • Connectors: Unbalanced on 2 BNC – EMI Suppression
  • Output impedance: 10 Ω
  • Load impedance: 600 Ω o higher
  • A/D conversion: Texas PCM1796
  • Nominal input level (sensitivity): From -9,0 dBFs to +15,0 dBFs


  • Physical support: USB Flash Drive, microSD CARD (max 64GB)
  • Audio file format: MP3, WAV
  • Sample Rate: 32 | 44.1 | 48 | 64| 96 KHz


  • Power supply: 90-260 V AC / 47-63 Hz
  • Power consumption: 15 W
  • Operating temperature: 0°C ÷ 50°C
  • Falcon X6/X7 - Dimensions WxHxD: 485 x 44 x 240 mm (1 rack unit 19”)
  • Falcon X6/X7 - Weight: < 3Kg


  • Pilot frequency: 19 KHz +/- 1Hz
  • Pilot injection: –25,0 dB ÷ 15,5 dB (step 0,1) | 6-18% total deviation
  • Pilot stability: ±10 ppm (-10 ÷ +55 °C)
  • Pilot distortion: 0,05 % (typical)
  • Distortion + Pilot noise: 0,068% (on the 100Khz band)
  • External composite THD: 0,005 % (typical on the whole band)
  • Stereo separation: >70 dB (typical on the whole band)
  • Linear crosstalk: ≤ –80 dB (for a 100% modulation)
  • main>sub and sub>main crosstalk: > 65 dB (at least)
  • Filtering / digital band: 30 Hz ÷ 15 kHz (-0,1 dB), 17 kHz (-70 dB), 19 kHz (-100 dB)
  • Protect. 57 kHz subcarrier (RDS/RBDS): Better than 51 dB
  • Pre-emphasis: Off, 50μS, 75μS (+-0,1dB)
  • Frequency response: ±0,3 dB (30 Hz ÷ 15 kHz)
  • Operating mode: Mono /Stereo
  • MPX/RDS Output: Adjustable from –10,0 dB to 15,0 dB (step 0,1 dB)
  • Signal/Noise Ratio: > 90 dB (on the 100 kHz band)
  • Carrier Suppression: >85 dB


  • Supported Group: All
  • Group Sequence: Configurable
  • PS: 8 DSN x 10 PSN
  • PI: 8 DSN x 10 PSN
  • AF Method A: 25
  • AF Method B: up to 1024 (64 lists)
  • RT: Yes, 32 messages
  • RT rate adjustment: Group Sequence
  • RT+ for songs and content tagging: Yes
  • TP: Yes
  • TA Control: Command, Soft, GPI
  • PTYN: Yes
  • EON: 10 PSN
  • CT: Yes
  • TMC, EWS, IH, TDC: Yes
  • Free Format Groups (FFG): Yes
  • Open Data Application (ODA): Yes
  • PS Scrolling: Yes
  • Auto "parses" long messages for: best text display: No
  • Scrolling by characters: From 1 up to 8
  • Scrolling by word, Auto centering: Truncate long words: Yes


  • Connection with radio automation: Software: Yes
  • Network connectivity: 4 TCP ports / 4 UDP / 1 SNMP
  • Configuration software: Web Server, FTP
  • Password protection: Yes
  • ASCII Protocol: Configuration messages
  • Alert notifications on user-defined: events via SNMP traps or E-mails: Yes
  • Embedded SNMP agent permitting: active management tasks: Yes
  • Supported Network Protocols: HTTP, SNTP, UDP, TCP, NTP,FTP
  • UECP Protocol: EBU SPB490 Ver.7.05
  • PI <=> CALL Calculator: Yes
  • RDS 2.0 Ready: Yes


  • GPIO Inputs/Outputs: 6 GPI, 4 GPO
  • Communication Port: 2xRS232, 3xUSB, 1xLAN
  • Synchronization: Ext (Pilot MPX)/ Int/Auto
  • Synchronization monitoring: Yes
  • RDS Level adjustment: Digitally controlled
  • Phase adjustment: 0 ÷ 359.9°
  • Separate out RDS+MPX / RDS only: Yes
  • Command to activate the RDS SCA: Yes
  • Operating modes: Side chain, Loop through, Bypass
  • RDS Subcarrier: 100% digitally generated shape
  • CENELEC - EN50067 compliant: Yes
  • Clock time (CT): Accurate clock time sync with Internet connection
  • Remote TA traffic announcements: Yes
  • Automatic RTC synchronization: Autosync with optional USB external GPS receiver

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