Technical Specifications
Format: Dual-output external 500-series power supply unit (full DIY kit)
Rack Capacity: Simultaneously powers up to two 11-slot 500-series racks (22 modules total; expandable up to 40 modules with upgraded fuses and proper cooling)
Power Rail Configuration: 5 independent rails (3 positive and 2 negative @ 3 Amps peak capability each)
Stock Fusing: Supplied with 1.6 A fuses per 16 V rail output block (exact 160 mA VPR standard per slot for two 11-slot racks)
Filter Capacitance: Massive 40,000 µF total super-smoothing capacitor bank (10,000 µF per audio rail)
Voltage Regulators: High-current LM350 linear regulators (±16 V) and TL783 regulator (+48 V phantom)
Cooling: Heavy-duty passive chassis heat-sinking
Mains Input: Switchable 115 VAC/230 VAC via rear switch with IEC socket
Outputs: 2x independent 5-pin XLR output sockets (individually fused)
Dimensions & Enclosure: Full desktop/rack chassis with pre-printed front and rear panels
Key Features
Dual 11-Slot Capacity & Expandability: Built around heavy-duty LM350 regulators delivering up to 3 A per rail
Stock Configuration: Comes equipped with 1.6 A rail fuses per output, perfectly matched to the VPR standard (160 mA per slot) for driving two 11-slot chassis
High-Current Potential: By swapping to higher-value fuses and maintaining adequate thermal dissipation/airflow, the unit provides enough headroom to power up to 40 modules across multiple chassis
40,000 µF Super-Smoothing Filter Bank: Massive onboard capacitance guarantees ultra-low noise, high ripple rejection, and rock-solid voltage stability under heavy dynamic loads
Independent Dual Fused Outputs: Each 5-pin XLR output features its own dedicated fuse set to completely isolate and safeguard each rack in the event of a short circuit
Passive Thermal Management: Voltage regulators are thermally coupled directly to the metal enclosure for silent, fanless operation
Visual Status & Global Voltage: Real-time LED indicators for all active power rails and an international 115 V/230 V mains switch for global use
Available Options/Included in Kit
Full DIY Kit: Includes 1U/desktop metal chassis (pre-printed panels), custom toroidal transformer, main dual distribution PCB, 40,000 µF cap bank, LM350/TL783 regulators, 1.6 A stock fuses, IEC socket, 115 V/230 V selector switch, dual 5-pin XLR output connectors, mounting hardware, and internal hookup wire
(Note: Requires soldering and AC mains wiring assembly skills. Step-by-step assembly guides available in our Build Manuals section.)