A compact, heavy-duty 2-rail power supply unit engineered for DIY audio projects and 500/51X-series racks, delivering high-current output with massive smoothing capacity in a ultra-compact footprint.
Technical Specifications
Output Rails: 2 independent rails (1 positive and 1 negative at 3 A each)
Voltage Regulation: High-current LM350 linear regulators
Filtering: Massive 20,000 µF super-smoothing capacitor bank (10,000 µF per ± rail)
Variable Voltage: ±V1 configurable from 3 V to 30 V (transformer dependent)
Terminal Block Connectors: Heavy-duty screw terminals accepting cables up to 2.5 mm²
Board Dimensions: 90 mm x 80 mm
Key Features
High Output Capacity: Easily powers a full 11-slot 500/51X rack (using a 2x 15–18 Vac 100 VA transformer; TRIAD VPT30-3330 highly recommended for ±16 V operation)
Modular Multi-Rack Expansion: Can be combined with an additional single VPR board and a 48 V PSU to power up to two complete 500-series racks simultaneously
Massive Power Filtering: Integrated 20,000 µF capacitor bank provides ultra-clean DC voltage with exceptional ripple suppression for low-noise audio performance
Safety & Cabling: Includes dedicated Protective Earth (PE) and Ground (GND) connections, along with heavy-duty terminal blocks supporting up to 2.5 mm² wire gauge
Available Options
PCB Only: 1x SINGLE VPR Bare PCB
Full Kit: 1x SINGLE VPR Bare PCB and all required electronic components
Product name: SINGLE VPR
Product identifier: PSU005/PCB005
Manufacturer: Link Audio Design, August-Bebel-Str.18, 08373 Remse, linkaudiodesign@gmail.com