Audiophile Linear Power Supply for HiFi Audio Systems

The FiiO Darkside Pro Low-noise regulated linear power supply is a premium low-noise regulated linear power supply engineered for audiophiles seeking cleaner power delivery, reduced electrical noise, and improved sonic performance for HiFi audio equipment.

Featuring a powerful 75W audiophile-grade toroidal transformer, fully discrete NMOS voltage regulator circuit, dual-MOSFET parallel current amplification, and selectable 12V/15V output modes, the Darkside Pro delivers stable low-ripple DC power for DACs, headphone amplifiers, streamers, routers, and other sensitive audio devices.

Designed to enhance audio clarity, dynamics, soundstage precision, and overall system stability, the Darkside Pro is an ideal upgrade for high-performance desktop and home HiFi systems.

Perfect for:

• DAC power upgrades
• Headphone amplifiers
• Music streamers
• Audiophile desktop systems
• HiFi network devices
• Low-noise audio environments

Features

• Audiophile-Grade 75W Toroidal Transformer
• 12V/15V Dual Voltage Support
• 3A High Current Output
• Fully Discrete Voltage Regulator Circuit + Dual-MOSFET Parallel Current Amplification Output
• Self-Resetting Fuse Overcurrent Protection
• Precision Potentiometer for Voltage Fine-Tuning

In the Box

• FiiO Darkside Pro
• DC power cord
• AC power cord
• Spare fuse
• Quick start guide

75W Toroidal Transformer

Specifically designed for low-noise audio, this toroidal transformer utilises a grain-oriented silicon steel circular core process for higher efficiency and minimised eddy currents. The seamless, fold-free coil design ensures a uniform magnetic field and minimal magnetic leakage. With a 75W reserve, it effortlessly handles high-dynamic transient demands, delivering solid bass extension and a vividly clear soundstage.

Audiophile-Grade Components

Fully Discrete NMOS Voltage Regulator Circuit

Dual high-current IRFZ34NPBF MOSFETs are used in a parallel configuration to lower internal resistance. The result is improved dynamic range and assurance that every nuance of audio is faithfully preserved.

Relay-Switched 12V/15V Output

An integrated relay manages the transformer’s output voltage to provide a precise match for both 12V and 15V settings. Such a design maximises power efficiency and significantly reduces heat generation during operation.

Precision calibration, Intelligent protection