MU-B3 | 53’ Straight Support Unit

Field Operations Trailer for Engineering, Audio, and Technical Support Teams

The MU-B3 is a 53-foot straight trailer designed as a mobile support infrastructure for large-scale live production environments. Configured with 10 working positions, internal climate control, and segmented operational zones, MU-B3 is ideal for use as an engineering annex, audio prep suite, production office, or cable management hub. Its layout is nearly identical to that of MU-B1, but it serves as an additional unit in Live Media Group’s support fleet, providing flexibility and capacity for events that require multiple engineering or flypack support zones.

Vehicle Specifications

• Trailer Length: 53 ft
• Recommended Working Area: 61 ft (L) x 18 ft (W)
• Working Positions: 10
• Structure Type: Non-expanding (straight trailer)
• Gross Vehicle Weight: Not specified (53’ support trailer class)
• Power Requirements:
  • Single Phase, 208 Volts
  • 150 Amps
  • Camlock Input for Field Generator or Shore Power Connection

Floorplan Layout

As seen in the floorplan diagram on page 1, MU-B3 is divided into clearly defined sections optimized for support workflows:

• “Chapman” Storage Room: Rear ramp-accessible room with shelving for gear carts, flypack racks, fiber drums, or expendables.
• Cushman and Audio/Office Room: Enclosed space designed for technical personnel who require privacy or focus, including audio techs or operational leads.
• Production Area: Central open floor plan with seven side-by-side operator positions along a shared counter. Ideal for engineering coordination, communications staff, or producers.
• Engineering Bay: Front-most section with power tie-ins and environmental controls, suitable for infrastructure patching or field engineering tasks.

This design allows multiple departments to work in tandem without overcrowding a primary production truck.

Functional Use Case

MU-B3 is purpose-built for crew overflow and technical support. It does not include a production switcher, replay system, or core router, but it provides a flexible workspace in support of those systems. It can serve in roles such as:

• Engineering fiber patch and control room extension
• Audio or intercom system prep
• Production office or field admin workspace
• Flypack system deployment support
• Additional crew workspace during REMI or hybrid productions

This makes it especially useful when working alongside mobile units such as MU-10, MU-28, or any REMI-focused trucks where on-board space is reserved for core switching or acquisition.

Cable Infrastructure

MU-B3 does not come with a fixed cable load. Instead, cable inventory is customized per project, ensuring each deployment is tailored to production needs. Cable sets may include:

• Triax Camera Cable
• DT12 Audio Multicore
• SMPTE Hybrid Fiber
• TAC-12 Tactical Fiber
• XLR Analog Audio
• Coax (5- or 10-wire) Looms

By customizing cabling to the show format, MU-B3 can operate as a patch room, cable landing zone, or integration point for auxiliary systems.

Power & Environment

• Power: Single Phase, 208V @ 150A
• Cooling: Full HVAC system
• Connectivity: Designed for integration with shore power or on-site generators

Climate control is ideal for long workdays and protects sensitive gear from exposure or heat fluctuations.

Why MU-B3 Stands Out

MU-B3 is a foundational component in multi-unit broadcast compounds. While it doesn’t switch or mix, it houses the people who make those systems work: the engineers, audio techs, producers, and signal integrators. It is ideal for both high-density events where space in production trucks is limited, and smaller events needing mobile office and engineering space without the overhead of a full control room.

Its similarity to MU-B1 means crews can scale up operations seamlessly. When a large show requires multiple control rooms, patch positions, or decentralized flypacks, MU-B3 ensures the infrastructure is there to support them.

Contact for Configuration

Cable packages and internal layouts can be tailored.
Contact: 833.933.54483
Email: solutions@livemediagroup.com
Reference MU-B3 for availability and integration planning.

For configuration options or scheduling, reach out to us!
Phone: 833.933.54483
Email: solutions@livemediagroup.com
Reference MU-B5 when inquiring.