FiiO M15S Hi-Res Portable Digital Audio Player

The FiiO M15S Hi-Res Portable Digital Audio Player is engineered for audiophiles who want reference-grade sound anywhere. A flagship ES9038PRO DAC (8 D/A converters in parallel), 4th-gen FPGA + NDK femtosecond clocks (DAPS), and a multi-stage analog circuit deliver ultra-low noise, superb dynamics, and striking detail. With Desktop Mode for higher-voltage power and 5th (enhanced over-ear) gain up to 1200 mW @ 32Ω per channel, the M15S can drive demanding headphones with ease. Run third-party apps on Android 10, stream over dual-band Wi-Fi, and enjoy two-way Bluetooth with top-tier codecs—all managed on a crisp 5.5" HD display with precise 120-step volume control (buttons + analog knob).

Key Features:

• Flagship DAC: ES9038PRO with 8 D/A converters in dual-mono parallel for rich, highly detailed sound.
• 4th-Gen DAPS: FPGA + dual NDK femtosecond oscillators for ultra-low jitter, purer timing.
• Desktop & Portable Power: Battery playback up to 10.5 hrs, or Desktop Mode with higher-voltage supply and 5th gain level.
• High Output Power: Up to 1200 mW @ 32Ω (balanced) in High Gain; four gain levels + enhanced over-ear mode.
• Triple Headphone Outs: 2.5 mm balanced, 3.5 mm SE, 4.4 mm balanced.
• Two-Way Bluetooth 5.0: Transmit/receive with LDAC, aptX HD/Adaptive/LL, LHDC, AAC, SBC.
• Six Modes: Pure Music, Android, AirPlay, Roon Ready, USB DAC, BT Receiver.
• Thermal Design: Graphene + dedicated heatsink dock (DK3S) for sustained performance.
• Expandable Storage: 64 GB internal + microSD up to 2 TB.
• Fast Charge & Battery Care: QC 3.0/PD support with optimized charging to reduce cell wear.

Features:

Reference DAC Architecture

The ES9038PRO runs eight D/A elements split per channel for elite channel separation and microdetail. A multi-stage analog path (I/V, LPF, gain, amplification) with film resistors and Panasonic metalized film capacitors minimizes harmonic and phase distortion for a lifelike, noise-free presentation.

FiiO DAPS Clocking (FPGA + NDK)

Audio is reclocked by a 4th-gen FPGA synced to dual NDK femtosecond crystal oscillators, drastically cutting jitter so transients and spatial cues remain intact across PCM and DSD.

Desktop Mode Power

On the desk, connect external USB power to engage Desktop Mode—a separate, higher-voltage supply activates 5th gain (enhanced over-ear) for undistorted headroom up to 1200 mW @ 32Ω (balanced). Battery is preserved (no charge/discharge) and analog/digital rails are isolated to reduce crosstalk.

Thermal Stability

A graphene heat-dissipation solution plus the included DK3S dock help maintain operating temperatures under sustained high-gain output.

Connectivity & Control

Powered by a Snapdragon 660 on Android 10, the M15S runs streaming apps smoothly over dual-band Wi-Fi. Two-way Bluetooth 5.0 supports the latest codecs. A 120-step volume system lets you dial in level via side buttons or the analog potentiometer with a high-precision rotary encoder; customizable RGB status lighting included.

Included In The Box:

• FiiO M15S Hi-Res Portable Digital Audio Player
• Leather Case
• DK3S Heat Dissipation Dock
• PD Charging/Data Cable
• USB Power Cable for DK3S
• USB Adapter
• microSD Card Removal Pin
• Limited 1-Year Manufacturer Warranty

Technical Specifications:

Featured Callouts:

• Desktop Mode: Higher-voltage supply, 5th gain, no battery cycling.
• Flagship ES9038PRO: Parallel 8-D/A architecture for elite dynamics.
• DAPS Clocking: FPGA + femto clocks for vanishingly low jitter.
• Thermal Dock: DK3S keeps performance stable under load.
• Triple Outputs: 2.5 / 3.5 / 4.4 mm to match any headphones/IEMs.