PRE-ORDER — Estimated shipping: November 1, 2026.
Order now to secure your unit. This is a pre-order item; your card will be charged at checkout. Orders are expected to ship on November 1, 2026. This is an estimated shipping date, not a guaranteed dispatch or delivery date. Actual shipping may vary based on manufacturer production and inbound schedule.
The FiiO M25 R2R is a flagship portable high-resolution music player built around FiiO's second-generation self-developed R2R PRO DAC architecture. Featuring 384 high-precision resistors and a large-scale FPGA, the QCS6490 processor with 8GB RAM and 128GB storage, a 5.5-inch touchscreen, and dual headphone outputs, the M25 R2R brings natural, analog-sounding R2R playback to a portable Android DAP with full streaming app support.
Why it stands out
Self-Developed Second-Gen R2R PRO DAC
FiiO's proprietary R2R PRO architecture uses 384 high-precision resistors paired with a large-scale FPGA to deliver natural, smooth, analog-sounding playback. The R2R ladder design avoids the pre-ringing and digital harshness common to delta-sigma DACs, bringing rich harmonic texture and organic timbre to your music.
QCS6490 Flagship Processor with 8GB+128GB
Powered by Qualcomm's QCS6490 (same architecture as Snapdragon 778G), paired with 8GB RAM and 128GB internal storage. Run streaming apps, browse your library, and multitask smoothly with headroom for future firmware updates. Supports microSD cards up to 2TB for massive music collections.
1700mW Desktop Mode Output Power
When connected to external power in Desktop Mode, the M25 R2R delivers up to 1700mW of output power — enough to drive demanding full-size headphones with authority and dynamic headroom. The 4.4mm balanced and 3.5mm single-ended outputs cover all headphone types, while the coaxial output lets you connect to an external DAC or amplifier.
31-Band PEQ + Auto EQ + Femtosecond Clock
Fine-tune your sound with a 31-band parametric equalizer and FiiO's Auto EQ functionality. The custom femtosecond crystal oscillator and high-capacity FPGA ensure ultra-low jitter digital processing, while XMOS XU316 handles USB audio with precision. The 5.5-inch fully-laminated touchscreen provides intuitive control and clear album art display.
Best for
Audiophiles seeking natural, organic R2R sound in a portable player
Users who want full Android streaming app support alongside local playback
Headphone collectors needing high output power for full-size cans
Listeners who value extensive EQ and sound customization options
Anyone looking for a future-proof flagship DAP with 8GB+128GB specs
Not ideal for
Budget-conscious buyers looking for an entry-level player
Users who prioritize maximum battery life over flagship performance
Those who need Apple Music lossless playback (limited by Android system)
Listeners who prefer the analytical, ultra-detailed sound of delta-sigma DACs
Users wanting a compact, ultra-light player for sport or extreme portability
EMiUZEK Buying Notes
This listing is for the FiiO M25 R2R portable high-resolution music player in black. The M25 R2R features FiiO's second-generation self-developed R2R PRO DAC and ships with standard retail packaging including the player, USB-C cable, quick start guide, and warranty card. Product images are for reference only; the actual product may vary slightly in appearance.
The M25 R2R supports both portable battery operation and Desktop Mode with external power supply. For maximum output power and performance, connect the player to an external power source via the dedicated power input. The 4.4mm balanced output is recommended for high-impedance or low-sensitivity headphones; the 3.5mm output supports both single-ended headphone use and coaxial digital output.
Specifications
Model
FiiO M25 R2R
Processor
Qualcomm QCS6490 (Snapdragon 778G architecture)
RAM / Storage
8GB RAM / 128GB ROM (≈112GB usable)
Storage Expansion
microSD/TF card up to 2TB
DAC Architecture
FiiO 2nd-gen R2R PRO (384 precision resistors + FPGA)
USB Controller
XMOS XU316
Clock
FiiO custom femtosecond crystal oscillator
Max Output Power
Up to 1700mW (Desktop Mode, external power)
Headphone Outputs
4.4mm balanced (BAL PO/LO), 3.5mm single-ended (PO/LO)
Digital Output
3.5mm coaxial (shared with single-ended)
Display
5.5-inch fully-laminated touchscreen
OS
Android
Equalizer
31-band parametric EQ, Auto EQ
Special Features
Desktop Mode (external power), DAPS digital audio purification
USB
USB 3.0 Type-C (data/charging), dedicated power input
Supported Formats
DSD, DST ISO, DXD, APE, FLAC, WAV, AIFF, ALAC, MP3, OGG, WMA
Color
Black
FAQ
Q: What is the difference between R2R and delta-sigma DACs?
A: R2R (resistor ladder) DACs use a network of precision resistors to reconstruct the analog signal directly, resulting in more natural, organic sound with richer harmonics and no pre-ringing. Delta-sigma DACs use oversampling and noise shaping, typically offering higher measured specs but can sound more digital or analytical. The M25 R2R uses FiiO's second-generation R2R PRO architecture for authentic R2R sound.
Q: Can the M25 R2R drive full-size headphones?
A: Yes. In Desktop Mode with external power, the M25 R2R delivers up to 1700mW of output power through the 4.4mm balanced output, which is sufficient for most full-size headphones including demanding planar magnetic models. For portable use, output power is lower but still adequate for efficient over-ear and in-ear monitors.
Q: Does the M25 R2R support streaming apps like Spotify and Tidal?
A: Yes. The M25 R2R runs a full Android operating system with the QCS6490 processor and 8GB RAM, allowing you to install and run popular streaming apps including Spotify, Tidal, Qobuz, Apple Music, and more from the Google Play Store or via APK installation.
Q: What is Desktop Mode and how do I use it?
A: Desktop Mode allows the M25 R2R to run from an external power supply instead of its internal battery, enabling maximum output power (up to 1700mW) and preventing battery cycling during stationary use. Simply connect a compatible power adapter to the dedicated power input port on the top of the player. The player will automatically switch to Desktop Mode when external power is detected.
Q: What is the warranty policy?
A: The FiiO M25 R2R comes with a 1-year warranty. Eligible returns may be requested within 14 days after receipt, with no restocking fee. See our Return Policy for eligibility, return shipping responsibilities, and exclusions. Within one year, enjoy free warranty service. Artificial damage (drops, water exposure, unauthorized disassembly, etc.) is not covered.
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