The MA400 SIP Opus Stereo Encoder/Decoder enables remote contribution links with SIP and the high-quality, open audio format Opus in a cost-effective solution. The advantages of the royality-free Opus codec are its quality, efficiency and low latency. Combined with the SIP functionality to establish seamless links across VoIP and other IP based communications systems, it is ideal for remote contribution applications. The SIP functionality in the Barix unit allows to dial another device or auto replies to a call and automatically negotiate a transmission link for Opus based audio streaming.Particularly interesting is the MA400 SIP Opus Stereo Encoder/Decoder for remote contribution back to the studio such as from sporting events. It combines Barix well know reliabilty in broadcast as well as in SIP-based telephony with the bandwidth efficiency of Opus, enabling easy, high-quality audio links to and from the studio. Barix SIP Opus solution family consists of the mic and line input / bi-directional mono MA400 SIP Opus Stereo Encoder/Decoder with PoE; the stereo decode only M400 SIP Opus Decoder as well as a forthcoming XLR based stereo versions, all allowing extremely cost-effective deployment.Main Features:Bi-directional mono Opus codecMicrophone / line level inputAudio level supervision with SNMP trap generationSupport of multiple coding standardsLine level output (balanced)Amplified output 5W (8 Ohm)Power over Ethernet (PoE)Specifications:Electrical:802.3af PoE on RJ-45 connector48VDC nomimal, 12Watt max.Ethernet:10/100Mbps autorate, full/half duplexRJ-45connector withintegratedLink/ActivityLED:802.3af PoE supportProtocols: TCP/IP, UDP, RTP, DHCP, Multicast capableAudio Input:Characteristics/mode selectable by software:Mic mode: tba, bias power for electret microphone suppliedLine mode: 2k input impedance3.9 VPP max, adjustable in sensitivityFrequency response 20 Hz .. 18 kHz (-3dB)*Dynamic range 87 dB, SNR -87 dB, THD <0.1% (-3 dBFS)*Mechanical:Aluminumcase,280gDimensions 108 x38 x78.7 mm (4.25 x 1.5 x 3.1 inch)rack and wall mountable using optional accessories MTBFmin. 500000h (accordingtoMIL217F at 25C)Analog Line Output (mono):Transformer isolated, balanced (600 )Output level software controllableFull scale output voltage: 5.7 dBu, 4.2 VPP, 4.7 dBm @ 600 Frequency response 30 Hz .. 18 kHz (-3dB)*Dynamic range 88 dB, SNR -88 dB, THDSpeaker out: Suggested speaker impedance 8 (min.) 5 Watt max output power @ 8 Values @ 8: Frequency response 25 Hz .. 12 kHz (-3dB)*, Dynamic range tba, SNR tba, THD <1% (-3dBFS)*Supported Audio formats: OPUS G.711 (alaw ulaw) G.722 GSM iLBC Sppex