FiiO M25/M25 R2R | Digital Audio Player

The FiiO M25 is Available in Two DAC Configurations, Each Offering a Distinctly Different Approach to Digital Audio

AKM or R2R DACs
Up to 1700mW + 1700mW Balanced Output Power
Snapdragon 778G-based QCS6490 Platform
31-Band PEQ + Audio EQ
5.5" 1080x2160 Display


Desktop-Class Audio, Anywhere
The FiiO M25 brings the power and versatility of a desktop audio system into a portable player. With a high-performance Snapdragon-based platform, flagship-level DAC architecture, powerful headphone amplification, extensive EQ, and a 5.5-inch high-resolution display, the M25 is built to handle everything from everyday listening to demanding headphones.
An 8-core design with a high-performance A78 core running at up to 2.7GHz is backed by a generous memory and storage configuration. From multiple apps running in the background to large music libraries and streaming playback, everything stays smooth, stable and responsive.
Two Ways to Listen
M25 VERITAThe VERITA edition combines AKM’s flagship AK4191EQ digital processor with dual AK4499EX DACs, using one DAC for each channel. The result is a highly refined presentation with excellent separation, detail, and dynamic range, complemented by a warm and smooth character.
M25 R2R PROThe R2R PRO edition uses FiiO’s custom 24+5-bit segmented R2R PRO resistor array. Designed to reduce the error accumulation associated with traditional R2R architectures, it preserves the natural, organic character of R2R while improving resolution, detail, dynamics, and soundstage performance.
Serious Power
With up to 1700mW + 1700mW of output power per channel, the M25 is built to handle headphones that demand more from their source. Connect a compatible fast charger through either Type-C port to activate High-Power Headphone Mode, unlocking the M25’s maximum output and giving demanding headphones the current and voltage they need for a more authoritative presentation.
When you’re listening at a desk, Desktop Mode allows the M25 to draw power directly from the external power supply while isolating the battery. This not only allows for sustained high-power operation without relying on the battery, but also reduces charge and discharge cycles to help extend battery life.

Built Like a Desktop DAC
Every stage of the M25’s audio circuit has been designed with sound quality in mind. From power delivery to signal processing, carefully selected components work together to maintain a clean, stable signal path. The M25 incorporates KEMET tantalum capacitors, AVX tantalum capacitors, Rubycon film capacitors, low-noise and low-temperature-coefficient film resistors, 65A high-current MOSFETs, and custom FiiO femtosecond oscillators.
Multiple stages of power purification and independent power-supply sections further reduce power-supply noise and crosstalk between modules, creating a cleaner background and providing stable power for the audio circuitry.