DB6400

Advanced FM and Digital Radio 4-Band Audio Processor with Backup Audio Player

Fully DSP-based, top quality 4-Band Audio Processor

The long years of experience at the top level of broadcasting technologies, as well as the undisputable expertise of our engineering team have brought forth a brand new audio processing tool - the DB6400 FM and Digital Radio 4-Band Audio Processor.

The much-anticipated DB6400 is an innovative tool with an ultra low latency DSP-based design for unrivalled quality of sound. It has a built-in IP Audio Player which supports MP3 and PCM audio formats, as well as a fully dynamic RDS/RBDS encoder. Solves the dead-air problem by switching over to a backup source and sending an email notification.

The DSP-based Stereo Encoder in DB6400 guarantees precision of the MPX signal with advanced peak control and two independently-configurable composite MPX outputs. The DB6400 offers perfect audio clarity no matter what the source material is. A complete processing architecture: Wide band AGC with “Intelligent Gating”, 4-band Parametric EQ, Advanced Bass and Treble Controls, 4-Band High Quality Sound processor with Fidelity control and Sound Impact, 4-Band Limiter, FM Limiter with advanced distortion & pre-emphasis control and HD Lookahead Limiter.

Fully DSP-based, top quality 4-Band Audio Processor
  • Ultra low latency, all-digital DSP based design
  • Advanced Wide Band AGC
  • 4-Band Parametric EQ
  • Advanced Bass & Treble Controls
  • 4-Band Limiter
  • FM Controlled distortion Limiter
  • 4-Band Dynamic Processor with Fidelity and Sound Impact System
  • HD Lookahead Limiter
  • Extensive set of factory presets and several customizable user presets
  • L/R Analog inputs and outputs and two independent Composite MPX outputs.
  • Integrated digital stereo generator with advanced peak control
  • Built-in web server for remote control access via TCP/IP connection
  • Software Control (over local network or the Internet using any Windows® PC)
  • Built in DSP-based RDS/RBDS encoder
  • Bright, wide view angle OLED and full-time LED meters
  • Easy setup and control via the front panel
  • Remotely upgradable firmware to ensure improved operation
  • Headphone output with front panel level control
  • Intelligent Silence Detector
  • Fallback function in case of Audio Loss
  • Variety of Audio Sources
  • Multi-format IP Audio Player
  • Built-in MP3 Player
  • SD Card for Audio Backup Storage
  • Externally synchronized output sample rate
  • Tight peak control at all outputs
  • EMI-suppressed XLR connectors
  • Stereo encoder integrated with audio processing
  • Bypass and Test tone Mode
  • Embedded SNMP agent permitting full device management
  • Easy to use WEB interface
  • Apple and Android devices support
  • SNTP for automatic synchronization of the built-in clock
  • Notifications on input/preset change via E-mail and SNMP
  • Protected access to the device settings
  • Professional AES/EBU Digital audio inputs
  • Level Adjustable, Balanced Analog and Digital Audio Outputs
  • LAN port for full TCP/IP remote control and monitoring
  • USB communication interface for local connectivity
  • Easy Installation and Setup
  • Wide operating voltage range: 100-240V AC
  • 19” Professional Case for high RF immunity

The long years of experience at the top level of broadcasting technologies, as well as the undisputable expertise of our engineering team have brought forth a brand new audio processing tool - the DB6400 FM and Digital Radio 4-Band Audio Processor.

The DSP-based Stereo Encoder guarantees precision of the MPX signal with advanced peak control and two independently-configurable composite MPX outputs. The DB6400 offers perfect audio clarity no matter what the source material is. A complete processing architecture: Wide band AGC with “Intelligent Gating”, 4-band Parametric EQ, Advanced Bass and Treble Controls, 4-Band High Quality Sound processor with Fidelity control and Sound Impact, 4-Band Limiter, FM Limiter with advanced distortion & pre-emphasis control and HD Lookahead Limiter.

Another feature that distinguishes the DB6400 from other products of its category is its Fallback function. This cutting-edge device is able to detect signal loss. In the case of silence at the main audio input, it automatically switches over to a backup source, thus ensuring a constant audio feed. What is more, an email notification is immediately sent which allows for an instant response on the part of your technical support team. Through the use of a standard FTP client, you have the opportunity to update the backup content at will via any PC. An additional asset is the automatic return to the main audio source as soon as the default input is restored. All silence sense parameters are user-defined.

Needless to say, the DB6400 comes with a user-friendly, comprehensive and well-organized user interface. Access is available through the front panel, remotely via TCP/IP and by using the WEB interface through iOS, Android or any other mobile device.

This one-of-a-kind device is the peak of DEVA’s engineering achievements combining simplicity of use, affordability of price and top performance and employing an array of technical parameters not found in any other device of its class.

Fully DSP-based, top quality 4-Band Audio Processor
Analog Audio Input
ConnectorsMain - Two XLR, EMI suppressed, electronically balanced; Auxiliary - DB9, EMI suppressed, electronically balanced
ConfigurationStereo
Input level (0 dBFS)Software selectable -8 dBu to +24 dBu peak
ImpedanceJumper selectable 600Ω / >10kΩ
A/D Conversion24 bit; 48 kHz sample rate; Differential inputs
Analog Audio Output
ConnectorsTwo XLR, EMI suppressed, electronically balanced
ConfigurationStereo. Software selectable flat, pre-emphasized or de-emphasized
Output Level( 0 dBFS)Software selectable -12 dBu to +24 dBu peak into >= 600Ω load
Source Impedance20Ω
Load Impedance>= 600Ω, balanced/unbalanced
Signal-to-Noise>= 110 dB unweighted (Bypass mode, digital input, flat, 20Hz-15kHz bandwidth, referenced to +12 dBu output level)
Distortion<= 0.01 THDN (Bypass mode, digital input, flat, 20Hz-15kHz bandwidth, referenced to +12 dBu output level)
D/A Conversion24 bit; 192 kHz sample rate; Differential outputs
Digital Audio Input
ConnectorsMain - XLR, EMI suppressed, transformer balanced and floating; 110Ω impedance; Auxiliary - DB9, EMI suppressed, transformer balanced and floating; 110Ω impedance
ConfigurationStereo AES3 standard, up to 24 bit resolution
Sampling Rate22 kHz to 192 kHz
Input Gain-20 dB to 20 dB, referenced to 0 dBFS, software selectable
Digital Audio Output
ConnectorXLR, EMI suppressed, transformer balanced and floating; 110Ω impedance
ConfigurationStereo AES3 standard, 24 bit resolution. Software selectable flat, pre-emphasized or de-emphasized
Sample RateInternal - 32, 44.1, 48, 88.2, 96, 176.4, 192 kHz. Externally synced to Main AES3 digital input at 32 to 192 kHz. Software selectable.
Word Length24 bit
Output Reference Level-20 to 0 dBFS software selectable
Composite Baseband Output
ConnectorsBNC unbalanced, chasis floating, EMI suppressed
ConfigurationTwo outputs. Independent level control. MPX+MPX, MPX+PILOT or BYPASS mode
Source impedance75Ω
Load impedance50Ω or greater
Output level-18dBu to +18dBu
Pilot level0% to 15%
D/A conversion24 bit, differential
SNR>80 dB (Bypass mode, flat, 20Hz - 15kHz bandwidth, Digital input referenced to -10dBFS, unweighted)
THD< 0.01% (Bypass mode, flat, 20Hz - 15kHz bandwidth, Digital input referenced to -10dBFS, unweighted)
Stereo Separation>60dB
Crosstalk>70dB
Pilot protection>90dB relative to 9% pilot injection, ±250 Hz
38 kHz suppression>80dB (referenced to 100% modulation)
Remote Access Interface
ConfigurationTCP/IP via USB or Ethernet interface
USB ConnectorUSB type B connector
Ethernet ConnectorFemale RJ45 shielded connector for 10/100 Mbps CAT5 ethernet networks
Remote Control Interface (GPI)
ConnectorDB-9 male
ConfigurationEight LED optocoupler, current limited cathode inputs. Anodes are connected to VCC internally.
ControlSelects corresponding user preset if connected to GND
Power
Voltage100-240 VAC, 50-60 Hz, 30VA
ConnectorIEC, Fused and EMI-suppressed. Detachable 3-wire power cord supplied
Environmental
Operating Temperature0° to 50°C / 32° to 122°F
Humidity0–95% RH, non-condensing
Size and Weight
Dimensions (W;H;D)483 x 44 x 180 mm
Shipping Weight540 x 115 x 300 mm / 2.465 kg
HS Code8517620000
Frequently Asked Questions
  • How can I lock the front panel keyboard?
    To prevent unauthorized local access, the unit offers password protected keyboard locking. By default the keyboard is unprotected. To enable this function, using the front panel navigational menu, go to Settings > Security > Front Panel, then press OK and ENABLE the Access Control function. Set the preferred 4 digit password and access timeout.
    Once the keyboard lock function is enabled, every attempt to use it will require a password: ENTER PASSWORD:0***. Access will be denied upon false entry.
  • How to unlock the front panel keyboard? I have forgotten the password / I have enabled the function unintentionally.
    If the “Keyboard unlock” function has been activated by mistake, try to unlock it using the default password 01234. In order to deactivate the code protection, once the front panel menu is unlocked follow the menu path Menu > Settings > Security > Front Panel > Access control and then select Disable.
    If you do not manage to unlock the front panel with the default password, nevertheless whether it has been changed intentionally or not, the unit should be returned to its factory defaults in order for the password security to be disabled.
  • I have forgotten my password for the WEB Interface. What should I do?
    The WEB Interface password could be viewed/changed via the front panel navigational menu. The menu path is Menu > Settings > Security > Remote Access.
  • I have forgotten both – the front panel and WEB Interface passwords. What should I do?
    If due to any reason you have forgoten both passwords - the one for the front panel and the one for the WEB Interface, please contact us at support@devabroadcast.com
  • How can I access the internal storage of my Silencer and upload tracks?
    An FTP client should be used in order the internal storage of the device to be entered. For further information on how to configure a connection between the device and the FTP client refer to the next question.
    Through the use of a standard FTP client, you have the opportunity to update the backup content at will via any PC. The supported format is .m3u. An important requirement for the MP3 Player configuration is that all MP3 files should be stored in a folder named Audio (no sub-folders are allowed). The folder should be located in the root of the SD Card. The playlist file must be named playlist.m3u.
  • How should I configure the connection between my DEVA Device and an FTP Client?
    In order for a connection to be established the following setting should be applied:
    1. FTP Server Settings
    The built-in FTP Server has four important parameters that should be configured: Command Port, Data Port, User name and Password. These parameters are to be used in the FTP client’s connection configuration. Further information on how to change the FTP Server’s settings and their respective default values can be found in the device’s User manual.
    We recommend the usage of FileZilla. This is a widespread open source software distributed free of charge, hence available for downloading from the Internet.
    NOTE: The FTP Server can manage only one connection at a time. TheFTP Server works in Passive mode. Hence, the FTP Client should also be set in passive mode.

    2. IP Router and Port Translation Settings
    If the connection to the device is made through a Network address translation (NAT) router or firewall, the port forwarding feature of the router should be configured. The port forwarding is usually set in the firewall section of the router's menu. As each router has different port forwarding procedure, we recommend you to refer to its complete manual. To allow proper data flow through the router, the FTP Command and FTP Data ports should be open.
    NOTE: The FTP port numbers to be used in the port forwarding feature configuration can be found in the device.

    3. Example of FTP Client (FileZilla) Settings
    In some cases, FileZilla's "Quick connect" feature is not able to connect with the DEVA unit. That is why we recommend the device to be assigned in the program manually.
    Enter the FTP Client and go to: File > Site manager > New Site. A dialog box requiring obligatory information about the device will appear. Fill in the needed information and press "OK".
    Click to Enlarge
    Select "Transfer Settings" sub-menu and apply the settings as shown below:
    Click to Enlarge

DB6400 Demo Devices

Click on the buttons with the selected Demo Devices below and take a closer look at the available features.

Use the following credentials when necessary:
User: admin         Password: pass

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