TECHNICAL SPECIFICATIONS

• Module Compatibility: 500 VPR Alliance and GDIY 51X Alliance modules

• Edge Connectors: 18-position EDAC connectors (51X compliant)

• Test Points: 4 mm Hirschmann banana jacks for all power rails

• Supported Voltage Rails: ± 16 V, +48 V, ± 24 V

• Audio I/O: Genuine Neutrik NC3 FAV and MAV XLR connectors plus 3-pin Molex headers

• Power Input Options:

  • NC5 MAV 5-pin XLR input for standard VPR power supplies (16 V and 48V)

  • 4 mm banana jacks for benchtop lab power supplies

  • 7-pin Phoenix terminal strip for chaining power across multiple boards

• Stereo Functionality: Onboard DC Link jumper for Pin 6 stereo compressor sidechain linking

DETAILED FEATURES

• Easy Bench Calibration: Extends module connections outside the chassis for safe, unrestricted access during alignment and troubleshooting

• Multi-Rail Power Probe Access: 4 mm Hirschmann banana jacks allow fast voltage checking with standard multimeter test leads

• Expandable Modular Architecture: Daisy-chain multiple boards together using the 7-pin Phoenix terminal block to build a multi-slot test bench powered by one supply

• Dual-Standard Compatibility: Native support for both standard 500 series VPR voltages and high-headroom 51X 24 V rails

• Stereo Compressor Linking: Integrated jumper enables Pin 6 DC Link compatibility for testing paired stereo compressors

CASE PARTS OPTION AND 3D PRINTING

• Included in Case Parts Kit: Threaded M3 inserts, M3 assembly screws, and precision front/rear panels

• Case Frame Requirement: The main enclosure body is a 3D-printed design. You can download the official 3D STL print files directly from printables.com and print the housing yourself.

WHAT'S INCLUDED IN THE KIT

• Main Stereo 51X Extension PCBs and 18-pin EDAC edge connectors

• Genuine Neutrik XLR connectors and Molex audio headers

• 4 mm Hirschmann banana connectors and Phoenix terminal block

• Jumpers, power socket, and circuit components

• Case hardware (if selected): M3 inserts, M3 screws, front and rear panels

Note: Requires soldering. Assembly instructions and 3D print links available in our Build Manuals section.