Technical Specifications

Format: External 500-Series power supply unit (full DIY kit)
Module Capacity: Powers up to 11 standard VPR modules (or up to 20 modules/3x X530 chassis with upgraded fuses and proper cooling)
Output Current Capability: 3 Amps peak capability per rail (+16 V, -16 V, +48 V DC)
Stock Fusing: Supplied with 1.6 A fuses per 16 V rail (exact 160 mA VPR standard per slot for 11 slots)
Filter Capacitance: 20,000 µF total super-smoothing capacitor bank (10,000 µF per audio rail)
Voltage Regulators: High-current LM350 regulators (±16 V) & 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
Connections: Heavy-duty 5-pin XLR output
Dimensions & Enclosure: Full desktop/rack chassis with pre-printed front and rear panels

Key Features

Massive Current Reserves & Scalability: Designed with heavy-duty LM350 regulators capable of delivering up to 3 A per rail
- Stock Configuration: Includes 1.6 A rail fuses to strictly match the VPR standard (160 mA per slot for 11 modules)
- High-Current Expansion: By swapping to higher-value fuses and ensuring proper thermal management/airflow, the PSU can comfortably drive up to 20 modules across daisy-chained chassis
Ultra-Clean Signal Path: 20,000 µF filtering combined with a custom toroidal transformer eliminates power supply ripple and mains hum
Passive Thermal Management: Voltage regulators are thermal-coupled directly to the metal enclosure for quiet, fanless passive cooling
Comprehensive Rail Protection & Monitoring: Features individual fuse sockets per rail, real-time LED status indicators, and dedicated PE/GND safety routing
Global Compatibility: Integrated 115 V/230 V mains switch for worldwide operation

Available Options/Included in Kit

Full DIY Kit: Includes 1U/desktop metal chassis (pre-printed panels), custom toroidal transformer, main regulation PCB, 20,000 µF cap bank, LM350/TL783 regulators, 1.6 A stock fuses, IEC socket, 115 V/230 V selector switch, 5-pin XLR connector, and all mounting hardware.

(Note: Requires soldering and AC mains wiring assembly skills. Step-by-step assembly guides available in our Build Manuals section.)

X-VPR

Name: X-VPR
SKU: PSU007
Price: 218.44 EUR
Availability: InStock

€218.44

Excluding Sales Tax

KIT

Quantity

High-Current Powerhouse for Up to 11 Modules across 500-Series Racks

The X-VPR is an external power supply unit designed specifically to power 500-series racks, such as the Link Audio X530, converted Midas Legend units, or custom DIY 500-series chassis. Delivering a massive 3 Amps per rail across three independent voltage rails, the X-VPR easily powers an entire 11-module rack setup without overheating or voltage sag.

Built around a massive 20,000 uF super-smoothing filter capacitor bank and a custom-wound toroidal power transformer, the X-VPR delivers ultra-clean, ripple-free power to your sensitive audio circuitry. High-current LM350 regulators handle the positive and negative 16 V voltage rails, while a dedicated TL783 regulator provides stable plus 48 V phantom power.

Safety and flexibility are built directly into the core design. Features include individual output fuses for gear protection, real-time output LED indicators, an international 115 V or 230 V mains switch, and a heavy-duty locking XLR output connector.

Product name: X-VPR Product identifier: PSU007 Manufacturer: Link Audio Design, August-Bebel-Str.18, 08373 Remse, linkaudiodesign@gmail.com
Shipping Rates: Calculated based on your location and the weight of your order
Domestic Shipping: Standard shipping within Germany via DHL
Economy Worldwide: Slow shipping up to 0.5 kg via DHL Envelope Service (up to 20 days delivery time)
Express Options: UPS Expedited and Express Saver available at checkout
Returns: Untouched DIY kits can be returned within 14 days of receipt (EU orders only; see our Return Policy for details)

X-VPR

Product Information

Shipping and Return

high-resolution audio samples of our kits in direct comparison

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