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FiiO Darkside Pro Linear Power Supply

FiiO Darkside Pro Linear Power Supply - Main image
$171.81 $249 In stock

Audiophile-Grade 75W Toroidal Transformer
Specifically designed for low-noise audio, this toroidal transformer utilizes a grain-oriented silicon steel circular core process for higher efficiency and minimized 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.

Japanese Shindengen D15XB60 Bridge Rectifier
Low heat generation and high stability-minimizes micro-interference
caused by current fluctuations for a cleaner audio signal.

5 ELNA capacitors + 7 Rubycon filter capacitors + 2 WIMA film capacitors
Effectively filters power supply noise to reveal a crystal-clear sonic foundation.

Monocrystalline Silver-Plated Copper DC Cable
Reduces transmission loss and shields against electromagnetic
interference (EMI) to enhance audio details.

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 ensures that every nuance of the audio is faithfully preserved. With fully discrete voltage regulator circuit and high-precision reference, ultra-low noise and lightning-fast transient response are achieved all while effectively minimizing heat generation.

Relay-Switched 12V/15V Output, Precision Thermal Control
An integrated relay manages the transformer's output voltage to provide a precise match for both 12V and 15V settings. Such a design maximizes power efficiency and significantly reduces heat generation during operation.

Minimalist Aluminum Chassis, Aesthetics meets Performance
The device uses a 46W low-noise, low-frequency toroidal audio linear transformer. Toroidal transformers have innate advantages: the toroidal core made with non-oriented silicon steel strips provides high efficiency and low eddy current loss, while the corner-free coils result in a more uniform magnetic field and less leakage. Thanks to this power supply, your favourite DAC/AMP is fed clean power that allows it to produce pristine, immaculate sound.

*The DC to Type-C adapter customized by DARKSIDE PRO for FIIO portable players is not standard equipment, needs to be purchased separately, and is expected to be launched in March

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Elizabeth P. ★★★★★

The 75W toroidal transformer really quieted down the noise floor on my headphone amp — grain-oriented silicon steel makes a difference you can hear. It's not cheap, but for the cleanliness it brings to the audio chain, worth every penny.

Penelope ★★★★★

Connected it to my DAC and the background is so black now, the toroidal transformer’s low-noise design really does its job. Took about a week to fully appreciate how much cleaner my mids and highs come through.

Benjamin ★★★★★

The hum I didn't know I had is just gone, and the grain-oriented silicon steel core makes it feel dead quiet even at higher volumes. My DAC sounds noticeably more solid now, like the bass tightened up overnight.