New IP Stage Box Range From Lawo

The stage box has long been a critical piece of equipment in live-event broadcasting because it provides a reliable and efficient way of getting on-stage feeds to the outside broadcast truck or TV/radio control room. This requirement remains true for IP-based networks and in response to this Lawo has launched a range of audio over IP (AoIP) stage boxes, which were shown at the recent BVE (Broadcast Video Expo) in London.

The new devices join Lawo's existing A_line series of AoIP interfaces and signal processors, including the A_mic8, A_digital8 and the A_madi4. The A_stage series offers Class A microphone pre-amps, digital analogue-to-digital FIR (finite impulse response) filtering and SM~PTE 2022-7 Seamless Protection Switching (SPS), plus two discrete redundant network links.

All mic/line inputs are switchable and can deal with both balanced and unbalanced sources. The stage boxes also feature AES3 I/O plus broadcast quality sample rate conversion, PTP/Word clock sync and conversion capacity and dual-redundant power inputs. The range comprises three units:

A_stage 80 is a maximum capacity 3RU multi-input AoIP stage box offering 32 switchable mic/line inputs, 32 analogue line outputs, eight stereo AES3 inputs and eight stereo AES3 outputs, eight opto-isolated GPIO ports adn dual 1000BT streaming and control ports on SFP/RJ45, with a separate RJ45 management port;

A_stage 48 is a 3RU unit and has 16 switchable mic/line inputs, 16 analogue line outputs, eight stereo AES3 inputs and eight stereo AES3 outputs on D-SUB connections, plus dual-redundant MADI ports on SFP, eight opto-isolated GPIO ports, dual 1000BT streaming and control on SFP/RJ45 and a 1000BT port RJ45;

A_stage 64 comes in a 4RU format and offers discrete I/O, with 32 switchable mic/line inputs, 16 analogue line outputs, eight stereo AES3 inputs and eight stereo AES3 outputs on XLR connectors, plus the same MADI, GPIO, streaming/control and management ports as found on the other two stage boxes.

The A_line range of AoIP nodes is able to stream uncompressed audio to Layer 3 networks in real-time over WANs and LANs. The units are able to convert a variety of audio formats - mic, line-level, AES3 and digitally encoded base band MADI - into AoIP streams through the SMPTE 2110-3-/31, AES67 and RAVENNA protocols.

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