The Darkside Mini is a power supply for 5V audio equipment that actively cleans the power it delivers. Rather than simply converting mains to 5V, it carries a built-in chip that generates real-time reverse cancellation signals, working on the same principle as active noise-cancelling headphones, to suppress power supply noise by up to 40 dB. The result is a lower-noise, more stable power feed for portable players, DAC/amps, desktop audio gear and any other device that runs from a 5V supply. It joins the Darkside Pro in FiiO's DARKSIDE power purification series, a range built specifically for hi-fi audio systems.
Active Noise Cancellation
Hardware and software work together to achieve the quoted 40 dB of noise suppression, and FiiO rates the performance as comparable to a linear power supply. A low floating ground voltage design minimises common-ground noise and current ripple, which FiiO credits with a quieter background and more natural audio detail.
Connectors and Compatibility
Output is through a 5521 female DC connector, and the unit comes with Type-C, USB-A and a selection of DC adapters, so one supply covers the power needs of mainstream devices. It can be used as a standalone power purifier with FiiO portable players, DAC/amps and desktop equipment, or with any other device that accepts a 5V supply.
Safety and Efficiency
The supply accepts a wide AC 100-240V input, is produced in region-specific plug configurations and holds multiple international safety certifications. It meets Level VI energy efficiency standards and includes short-circuit, over-current and over-voltage protection. This listing is for the black finish.