DB90-RX

IP Audio Decoder

Compact, Multi-purpose, Premium Decoding

The DB90-RX is an integrated client for IP transmitted digital audio signal, designed to support HE-AAC and MPEG-1 Layer 3 compressed audio streams, and PCM uncompressed stream for audio transmission without quality loss. Thanks to the powerful DSP processor, the decoding process is performed in real time and the audio is available at both the digital and the analog outputs.

The DB90-RX utilizes one main and two backup audio sources. You can choose between IP Audio, Icecast, and the RTP Audio Player. Of course, the source priority is user-defined. If the audio signal of the main source disappears, the device will switch to the first available backup source and vice-verse: when the main audio signal is recovered, the DB90-RX will automatically switch back to it.

The DB90-RX, in combination with the easy to use WEB Interface (accessible via any standard WEB browser and OS), can be used for Broadcast, Internet Radio, and Studio to Transmitter Link.

Compact, Multi-purpose, Premium Decoding
  • High Quality HE-AAC (v.1 and v.2), MPEG-1 and MPEG-3 Decoding
  • 32 kHz, 44.1 and 48 kHz sample rates support
  • Support of all standard bitrates and VBR as well
  • 6 LEDs and Phones output for quick diagnostics
  • IP address pronunciation at startup (through the headphones)
  • DHCP Client automatically assigning Network Settings
  • Easy setup via a standard web browser
  • UPnP for easy discovery in Local Networks
  • Shoutcast / Icecast compatible TCP/IP stream
  • Auto switching to another server in the event of a connection loss
  • Analog Audio Output (2 x RCA connectors)
  • Digital Audio Output (RCA Connector)

Designed for high-quality audio decoding, DB90-RX supports HE-AAC versions 1 and 2, MPEG-1 Layer 3 compressed audio streams and PCM uncompressed audio stream. The powerful DSP processor and either the digital or the analog outputs allow the decoding process to be accomplished in real time.

This high-tech device comes in a small and compact form, providing quick and effortless integrating of the existing audio systems to the Internet Situated on thousands of locations all over the world, DB90-TX allows management by any kind of web browser from your PC, PDA or any kind of mobile device. That is what makes it the best choice for professional and consumer use.

Along with its main IP audio source DB90-RX comes with backup audio sources for higher stability. If the audio signal of the main source disappear, the device will switch to the first available backup source. While when the main audio signal is recovered, DB90-RX will automatically switch back to it. Depending on your needs, the sequence of the backup audio sources can be easily changed.

DB90-RX in combination with the HTML 5 based WEB Interface can be used for Broadcast, Internet Radio, Studio to Transmitter Link as well as VoIP applications. It is compatible with every online radio system, including Icecast and Shoutcast, and also supports low latency Real Time Protocol (RTP) connection.

DB90-RX TYPICAL APPLICATIONS:

1. Audio Transmission over IP-based networks (DB90-TX is required at the opposite site)

2. Audio Transmission over IP-based Point-to-Point Wireless Link

3. MultiPoint Audio Transmission over IP-based networks

4. Low delay Real time Audio Transmission

In line with the latest technology, one or more DB90-RX devices in combination with an encoder, (such as DB90-TX and DB9000-TX, for an instance) is a complete solution for long distance audio-transmission applications.

Compact, Multi-purpose, Premium Decoding
Audio decoder
DecoderHE-AAC (v.1 and v.2), MPEG-1 Layer 3 or raw PCM
Sample rates32 kHz, 44.1 kHz and 48 kHz
Bit RatesAll standard bitrates, including VBR
Analog audio output
Connector2 x RCA, stereo
TypeUnbalanced
Level+9dBu @ 0dBFs
Sample rateSame as the source stream
Dynamic range101 dB
Digital audio output
ConnectorRCA
TypeS/PDIF (IEC 60958)
Sample rate48 kHz
ResamplingThru build-in sample rate converter
Stream client
TypeShoutcast/Icecast compatible TCP/IP client
Codec SupportAAC, MP3, PCM
ServersUp to 3 with auto-switch on failure
RTP Receiver
TypeUnicast RTP/UDP compatible receiver
CodecAAC, MP3
Count1
Phones audio output
Connector3.5mm jack, stereo
TypeHeadphones
User interface
Indicators6 LEDs on front panel
Web interfaceFull control and status information
Network
ConnectorRJ-45
TypeEthernet
Device discoveryUPnP support
Operating conditions
Temperature10°C - 45°C
Humidity< 75%, non-condensing
Power requirements
ConnectorPower Jack 6,3mm
Power supply12V DC, 1A
Size and Weight
Dimensions (W;H;D)106 x 33 x 128 mm
Shipping Weight230 x 54 x 172 mm / 0.7kg
Frequently Asked Questions
  • I have forgotten my password for the WEB Interface. What should I do?
    If due to any reason you have forgotten your WEB Interface password, in order for a new password to be assigned to the device, the unit should be returned to its factory defaults.
    The procedure is performed via the reset button placed on the rear panel of the device. To ensure that the procedure has been properly completed, please follow the instructions below:
    • Unplug the device from the power supply;
    • Press and hold the reset button;
    • While pressing the button, connect the device to the power supply again;
    • Wait for a few seconds, until the Power LED starts blinking;
    • Release the reset button;
    • The device should be returned to its factory defaults.
  • Can the DB90-RX be used as a multicast receiver?
    The DB90-RX IP Audio Decoder currently does not support Multicast reception.
  • How can the decoder be used as an IP Audio client?
    One of the following conditions should be fulfilled, prior any adjustments are applied:
    • A DB9000-TX/DB90-TX or other encoder with static IP Address and properly configured Stream Server could be used.
    • An online radio could be used.

    Once one of the above cited conditions is implemented, the following settings should be applied, via the WEB Interface:
    • Go to Configuration > IP Audio;
    • In IP Audio Client section - URL of the Server should be specified. The URL is a mandatory requisite needed in order for a connection with the server to be established. The URL could be compounded of a domain name or IP Address, Server Port, and path (optional), ex. radio.myserver.com:5000/live or 192.168.120:5000;
    • Choose the preferred decoder, prebuffer and specify buffer timeout. If needed set new gain adjustment settings;
    • From the Source priority Section set the priority of the IP Audio Client.
  • How can the decoder be used as an Icecast Source Server?
    Prior to implementing the below written adjustments, the following conditions should be fulfilled:
    • The DB9000-RX/DB90-RX should have a static IP Address. If the device is placed behind a router, you will have to make sure that the Icecast Player server port is properly NAT forwarded;
    • On the other side, of the connection, there should be a DB9000-TX/DB90-TX set as Icecast Source Client or other Icecast Source Client.

    Once the above cited conditions are implemented, the following settings should be applied, via the WEB Interface
    • Go to Configuration > IP Audio;
    • Icecast Audio Player Section - Specify the audio player port, username, password and decoder to be used;
    • From the Source Priority section set the priority of the Icecast Audio Player.
  • How can the decoder be used as an RTP Receiver?
    Prior to implementing the below written adjustments, the following conditions should be fulfilled:
    • The DB9000-RX/DB90-RX should have a static IP Address. If the device is placed behind a router, you will have to make sure that the player port is properly NAT forwarded;
    • On the other side, of the connection, there should be a DB9000-TX/DB90-TX or other encoder set as an RTP Sender.

    Once the above cited conditions are implemented, the following settings should be applied, via the WEB Interface:
    • Go to Configuration > IP Audio;
    • RTP Audio Player section - Specify the audio player port and decoder to be used;
    • From the Source Priority section set the priority of the RTP Audio Player.
  • What should be the buffer level? How can I apply the needed settings?
    The Buffer is used to supply an audio at the output when disconnection or a problem with the connection is present. The higher the buffer level is the longer the protection time will be. Though, the audio delay will be increased. The level at which the buffer will be set depends on your preferences and expected results as it comes to the quality of the connection. If a connection loss is not expected, the buffer level could be decreased. If the connection is unstable (such as 3G Network), we recommend a higher buffer level to be set.
    The buffer level is set in bytes, thus, the audio delay depends on the bit-rate of the audio stream. For example - audio with higher bit-rate will have a lower delay compared to audio with the lowest bit-rate at the same level of the buffer.
    The buffer level is the received amount of audio data at which the RX will start playing the audio. In the DB90/9000-TX settings should be set the pre-buffering level, which is the initial amount of data that is sent to the RX in order for the buffer to be filled rapidly i.e. the connection to be built quickly. We recommend the same values to both units to be set.
    All needed settings are applied via the WEB Interface.
    • For DB90/9000-RX go to Configuration > IP Audio > IP Audio Client subsection and set the pre-buffer level;
    • For DB90/9000-TX go to Configuration > IP Audio > Stream Settings subsection and select the pre-buffer level from the drop-down menu.

DB90-RX 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: user         Password: pass

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