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DEVA Broadcast DB91-TX

High-operational efficiency second generation IP Audio encoder

DEVA’s in-depth expertise in IP Audio technologies meets cutting-edge trends in DB91-TX. Its design guarantees outstanding performance. This second generation IP Audio encoder converts the audio signal into high quality compressed audio stream. Furthermore, it transmits the output signal directly over IP-based networks. DB91-TX also supports uncompressed PCM audio stream. This ensures audio transmission without quality loss.

It is Small and compact. This high-tech device enables quick incorporation in the existing audio systems. In addition, their respective effortless integration to the Internet is quite fantastic though. The front panel’s audio level bar graphs and LED indicators allow for reading the current state of the device at a glance. In line with DEVA’s very essential brand characteristics - easy set-up and monitoring, the DB91-TX could be managed through a simple and intuitive HTML5 interface and any kind of web browser, be it your PC, smart phone or tablet, remotely or locally.

Other Uses

The unit ensures premium broadcasting experience. Once the audio source is selected, the encoded in real time audio is immediately transmitted over IP-based networks. The enhanced DB91-TX can act simultaneously as an Icecast/Shoutcast compatible Server, Icecast source client or Real Time Protocol (RTP) sender. The audio stream may spread over an IP-based network to one or more DB90-RX, DB91-RX or other compatible IP audio decoders. To address the evolving customer needs, the DB91-TX IP Audio Encoder can also send audio to a number of clients simultaneously. This is possible provided a multicast address is being entered as a client address.

We have decades of experience to our credit. And also, there is much expanded tech expertise and understanding of customer’s needs which have resulted in agiler, trusted and cost-efficient solutions that improve broadcasters’ performance. DB91-TX has an impressive compact form. Its wide array of enviable features and intuitive control interface is the valuable asset to any enterprise in need of preeminent broadcasting systems and services.




Official site product link.

Additional information

Weight 0.7 kg
Dimensions 23 × 17 × 5.5 cm
  • High Quality HE-AAC (v.1 & 2) and MPEG-1 Layer-3 Compression
  • 32 kHz, 44.1 and 48 kHz sample rates support
  • Up to 88 kbps bitrate for HE-AAC
  • Up to 320 kbps bitrate for MPEG-1 Layer-3
  • Up to 1536 kbps for PCM
  • Analog Audio Input (2 x RCA connectors)
  • Digital Audio Input (RCA Connector)
  • Shoutcast / Icecast compatible TCP/IP stream
  • Up to 10 simultaneously connected clients
  • Multicast RTP Sender
  • 2 x 6 LED front panel audio level bar graphs
  • 4 x Status LEDs
  • Phones output for quick diagnostics
  • IP address pronunciation at startup (through the headphones)
  • Full Control and easy setup via a standard web browser
  • UPnP for easy discovery in Local Networks


DEVA Broadcast

DEVA Broadcast

DEVA Broadcast is an international communications and high-technology manufacturing organization. Its corporate headquarters and facility are located in Burgas, Bulgaria. The company serves the broadcast and corporate markets worldwide. This market ranges from consumers and small businesses to the largest global organizations. It is dedicated to the research, design, development and provision of advanced products, systems and services. DEVA launched its own brand back in 1997. It has nowadays evolved to become known as a market leader. Our company is an internationally reputed manufacturer of user-friendly, cost-effective and innovative broadcast products.

DEVA Broadcast Corporate Culture

DEVA weaves creativity and innovation deeply into its corporate culture. Our team of dedicated professionals creates future-oriented solutions. This technique improves customers’ performance through successful engineering, marketing and management . You may rely on all issues communicated to our crew would be addressed accordingly. We pride ourselves on our pre and post-sales support and purchase services. These along with the outstanding quality of our radio gear won us due respect and the market authority position. DEVA best-of-breed solutions have become the best sellers for our partners. We formed strategic partnerships with industry leaders during these years that we have been operating on the broadcasting market. Moreover, it has proved us to be a reliable business partner and a valuable asset, as our dealers worldwide would confirm. In constant pursuit of precision and long-term satisfaction, DEVA Broadcast enhances the reputation of our partners and clients alike. Furthermore, we have already a proven merit as a credible partner provider.

Our Portfolio

Our portfolio offers complete line of high quality products. It also provides competitive products for FM and Digital Radio, Radio Networks, Telecommunication Operators and regulation authorities. For almost two decades of intensive software and hardware development, our fame is widespread. We have achieved a unique price-performance and endurance of our product lines. Our company’s multitude of equipment and services are in line with the latest technologies and key trends. The most recognizable characteristics attributed to DEVA products are their clear-cut, streamlined design. The ease of use and cost-effectiveness are also quite exciting: simplicity of forms but multiplicity of functions. For us there is no stage when we deem that we have reached the most satisfactory level in our work. Our engineers are in constant pursuit of new ideas and technologies to be captured in DEVA solutions. Simultaneously, DEVA exercises a strict control at each step of any new development. Experience and hard work are our fundament. But we never jettison the continuous improvement process. DEVA participates on a regular basis in all landmark broadcasting events, not only to promote its products, but to exchange valuable know-how and experience. We are also engaged in international large-scale projects. These involve radio and audio solutions which makes us even more competitive on the global market. All DEVA products are developed and produced in accordance with the latest ISO 9001 quality control standards.

1 review for DEVA Broadcast DB91-TX

  1. 42sdg (verified owner)

    A great encoder! I recommend to everyone!

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Audio codec

Codec: HE-AAC (v.1 and v.2), MPEG-1 Layer 3 or raw PCM
Sample rates: 32 kHz, 44.1 kHz and 48 kHz
Channels: 1 or 2
Bitrate: Up to 88 kbps (HE-AAC); Up to 320 kbps (MPEG-1); Up to 3072 kbps (PCM);

MPEG-1 Layer 3 specific

Encoding mode: Mono and Stereo, Joint Stereo or Dual Channel
Emphasis: 50µs, CCITT J.17 or none

PCM codec

Channels: 1 or 2
Bitrate: Up to 1536 kbps

Analog audio input

Connector: 2 x RCA, stereo
Type: Unbalanced
Level: +6 dBu (max. +8dBu)
Sample rate: 32 kHz, 44.1 kHz and 48 kHz
Dynamic range: 102 dB

Digital audio input

Connector: RCA
Type: S/PDIF (IEC 60958)
Resampling: Thru build-in sample rate converter

Front panel

Level indicators: 2 x 5 LED bar graphs
Status Indicators: 4 LEDs
Headphones: 1/8″ (3.5mm) phones jack
SD Card: microSD card slot

User interface

Indicators: 14 LEDs on front panel
Web interface: Full control and status information

Streaming server

Type: Shoutcast / Icecast compatible TCP/IP stream
Clients: Limit Up to 10 simultaneous clients


Connector: RJ-45
Type: Ethernet
Device discovery: UPnP support

Operating conditions

Temperature: 10°C – 45°C
Humidity: < 75%, non-condensing

Power requirements

Connector: Power Jack 5.5mm
Power supply: 12V DC, 1A

Size and Weight

Dimensions (W;H;D): 106 x 33 x 128 mm
Shipping Weight: 230 x 54 x 172 mm / 0.7kg
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