The Ermetris Audio Amplifier provide 50W audio amplified on 2 parallel channels taking the audio via VoIP custom protocol or via standard SIP client:  the audio streaming, compressed  in MP3 format, requires a very limited bandwidth allocation, allowing flowing communications also in low priority connections.

The audio amplifier is provided with M12 D connector for Ethernet , M12 A code for power input and 12 pin connector for audio output.

Easy installation: deployment, installation and set-up are easy thanks SNMP protocol.

Click below to download datasheet

ermetris download data sheet 300x62 1

SKU: 004 Category: Tags: ,

Technical specification:


General features

  • 2 output lines for two group of loudspeakers
  • Max output power: 50 W
  • Output impedance: 4 ~ 8 ohm for each group of loudspeakers
  • Amplifiers diagnostic available on SNMP

Technical specification

  • 1 Ethernet interfaces with M12 connector
  • MP3, G711, G.722, PCM Encoding
  • AACplus, MP3, Ogg Vorbis, G.711, G.722, PCM linear Decoding
  • Shoutcast/Icecast Source capability
  • Audio Level Supervision with SNMP Trap generation
  • IP Streaming via TCP, UDP, RTP, Multicast
  • Embedded, robust OS, IP stack with support for TCP/IP, UDP, RTP, SIP, DHCP, Multicast/IGMP
  • Integrated web server (control/configuration)

Power supply

  • 24 VDC nominal EN50155 compliant
  • Consumption: 50W max

Physical characteristics

  • Overall dimensions: 134 x 160 x 61 mm (W x L x H)
  • Weight: < 3 kg

Environmental characteristics

  • Operating temperature range: -25 to +70°C EN 50155 class T3


  • EN 50155 for Railway applications
  • EN 61373 Random Vibration & Shock Testing
  • EN 50121-3-2 Railway applications. Electromagnetic compatibility
  • UNI CEI 11170 Fire and smoke