ProX XS-SI3UDHW — ATA Flight Case for Soundcraft SI Performer 3 & Expression 3
XS-SI3UDHW Overview
The ProX XS-SI3UDHW is a custom-engineered ATA road case designed specifically for the Soundcraft SI Performer 3 and Expression 3 mixing consoles, built to meet the demands of professional live audio touring and production environments. The case is constructed from ProX Signature Series Plywood reinforced with steel ball corners, providing durable protection against the rigors of repeated transport and deployment. A rear doghouse compartment with a discreet door allows engineers to route and conceal cables and I/O connections, keeping the work surface organized and accessible. This case is suited for live audio mixing engineers, touring companies, system integrators, and venues requiring a purpose-fit transport solution for this console.
A low-profile front panel provides quick access to console inputs without removing the unit from the case, and 4″ rubber-wheel casters allow the loaded case to be repositioned efficiently across stage and venue environments.
Key Features
- Purpose-Built Fit — Custom interior dimensions designed specifically for the Soundcraft SI Performer 3 and Expression 3 consoles, eliminating the need for generic padding solutions
- Rear Doghouse Compartment — Add-on rear enclosure with a discreet access door for storing and routing cables, I/O connections, and small rear accessories out of sight
- 4″ Rubber-Wheel Casters — Four casters with rubber wheels provide smooth, stable transport across stage floors, loading docks, and venue surfaces
- Low Front Panel Design — Engineered low front panel allows direct input access while the console remains seated in the case, supporting efficient workflow during setup and operation
- ProX Signature Series Plywood Construction — Rugged plywood shell built to ATA road case standards for long-term durability in professional touring and production use
- Steel Ball Corner Reinforcement — Heavy-duty steel ball corners protect case edges and structural integrity during stacking, loading, and transit
- Integrated Cable Management — Doghouse compartment accommodates cables and small rear accessories, reducing clutter and protecting connections during transport

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