FiiO - Portable Entertainment And Beyond
Guangzhou FiiO Electronics Technology Company Ltd, known colloquially as just FiiO; was established in 2007 and has extensive experience in researching and developing countless portable music products of different types. The brand name FiiO is composed of Fi from high-fidelity and iO from the binary numbers 1 and 0; thus representing the feeling and life convenience that digital brings. Meanwhile the Chinese symbol 飞傲 is the transliteration of FiiO, indicating the positive and innovative spirit as thriving as spring. FiiO is focused on product quality, adheres strictly to ISO9001 standards in quality management and works hard to attain the lowest repair-related product returns rate in the industry. Which one doesn't attempt unless most serious about quality and attention to detail.

M Series - Redefining Portable Expectations
Designed to place amongst the lead peloton; the smart desktop class M series represent an entirely new chapter of FiiO digital audio players. Build using desktop-grade DACs, amplification and power supply give it the output power and sound quality to rival and perhaps even surpass highly-regarded desktop systems; all in a portable package. Let the M series units redefine what is possible with portable audio players.

Design Ideologies
The latest M15S digital audio player from FiiO is a desktop-level device insofar as abilities, power and functionality goes. Ushering in an entirely new era of digital audio player technology, the M15S’ desktop-grade DAC, amplification and dual power supplies give it the output power and sound quality to rival and perhaps even surpass many highly-regarded desktop systems.

Desktop Level Machine
The desktop / portable dual power supply modes as featured on the portable desktop-grade player M17 and the portable desktop-grade Q7 amplifier have been well-received by the audiophile community, which is why FiiO sought to put this technology on other products. Now, with the implementation of the dual power supply modes with its more ergonomic design; the M15S is the ideal combination of portability and high performance.

Flagship Level Technology
The M15S starts a new chapter in the FiiO high-end, sharing the same technologies as the portable desktop-grade M17 player and the portable desktop-grade amp Q7 that give you desktop-level performance in a portable package; including desktop mode, dual power supply modes and five gain levels.

Multiple Gain Levels
The M15S can be adjusted with five levels of gain. Under battery power it can be set to low / medium / high / over-ear headphone gain levels can be selected. When under USB power the enhanced over-ear headphone gain level is also available, enabling undistorted power output up to 1200mW per channel; easily enough to drive a wide variety of IEMs and headphones.

Six Operating Modes
The M15S offers six operating modes, including Roon Ready. They are:
– Pure Music mode. FiiO exclusive mode for immersive music.
– Android mode. Freely use third-party apps, including those of streaming services.
– AirPlay mode. Wirelessly connect to iOS devices like iPhone / iPad, with a sound quality boost.
– Roon Ready mode. Roon ready certified, for serious music lovers.
– USB DAC mode. Acts as a DAC when connected to a computer / phone, for greatly improved sound.
– Bluetooth receiver mode. Supports SBC, AAC, aptX, aptX HD, aptX LL, LDAC, and aptX Adaptive, for convenient quality wireless sound.

Overbuilt Power Supply
For ample clean power anytime. Fully separated digital power supply, effectively reducing crosstalk and interference. Multi-stage analog power supply, high-precision and low-noise for early signal processing. Multi-voltage servo power supply for headphone amp, capably driving low and high-impedance loads.

High-Performance ES9038PRO DAC
The full, uncut desktop ES9038PRO DAC chip with eight independent D/A converters is employed in the M15S.Each channel uses four D/A converters in parallel to form a fully differential output, for a truly rich and highly resolving sound.

Fourth Generation FPGA + NDK Femtosecond Crystal
This forms the digital audio purification system (DAPS). Audio data is passed through a FiiO developed fourth generation FPGA with phase-locked loop technology, which works together with two custom Japanese NDK femtosecond crystal oscillators to provide a high-precision and low jitter unified clock source for the entire audio architecture. This is all done in the pursuit of purer sound.

Multi-Stage Audio Circuit
For faithful sound reproduction. The M15S features a multi-stage audio circuit complete with IV, LPF, gain adjustment and amplifier sections. High-precision and low-noise film resistor used ensures more accurate signal reproduction and channel balance. Within the LPF part of the circuit are Panasonic low-loss metalized film capacitors that guarantee extremely low harmonic and phase distortion.

Graphene Heat Dissipation Technology
Cooling for consistent high-power output. Advanced and highly efficient heat dissipation design allows the M15S to maintain stable temperatures and continuously deliver high power output. The stainless steel battery compartment quickly dissipates battery heat. Low temperature-drift and high-precision thin-film resistors and capacitors can stably cope with temperature swings. A dedicated metal shield made from graphene resides with high thermal conductivity silica gel; this is placed over hot spots for maximum heat dissipation.

Comprehensive Shielding
For truly clean sound. In order to shield from interference as much as possible, the M15S employs a nickel copper shield that shields the analog portion of the audio circuit as well as the main SoC to ensure the purity of the analog signals traveling through the circuit. In addition, stacked onto the main shield are other heat dissipation and shielding materials as well as wave-absorbing paper. The high-quality parts and carefully considered shielding design all aim to ensure truly clean and highly-resolving sound.

Next Level Wireless
Wireless hi-fi taken to the next level via SBC / AAC / aptX / aptX HD/LDAC two-way bluetooth. The M15S wireless capabilities include AirPlay, DLNA streaming and transmission as well as Bluetooth. Bluetooth is handled by the Qualcomm QCC5124 chip that has a proven track record in other FiiO products, allowing the M15S to capably handle two-way Bluetooth.
– Bluetooth 5.0 supported transmission includes SBC, AAC, aptX, aptX HD, LDAC and LHDC.
– Bluetooth 5.0 supported reception includes SBC, AAC, aptX, aptX HD, aptX LL, LDAC and aptX Adaptive.

Knob / button Volume Adjustment
It’s just reliable and easy to use. Volume on the M15S can be adjusted either with an analog potentiometer knob or with buttons, both easily allowing you to fine-tune through the 120 levels of volume the way you prefer. Feel free to turn the volume knob to your heart’s content, as the integrated rotary encoder is highly precise and designed for minimal wear with each turn of the knob. Even if you accidentally drop the device, the encoder is securely fixed ensuring the continued reliability of the volume knob. The volume knob features RGB lights, which can be customized in brightness, color, and behavior under various device statuses.

Qualcomm 660+Android 10 – A Heaven Made Match
With the stable and smooth combination of the Qualcomm Snapdragon 660 and Android 10, you can start listening quickly with the M15S. With the ability to freely install third-party apps and with no global SRC, you can be sure to listen to the music you want in the highest quality.

Elegant Construction
Instantly mesmerizing. The M15S features a combination of classical timeless styling and modern technological touches that give it an elegant appearance that is enjoyable to use.

Long Battery Life For Worry Free Operation
Despite its portable size the M15S features a high-capacity battery that ensures all-day listening whether you are using single-ended or balanced output. Battery charge optimisation and battery protection systems are there to ensure that the battery will last for a long time.

More safeguards Equates To Fewer Headaches
The overheat protection and battery protection systems are among the many safeguards that ensure the M15S can consistently maintain its high power output, letting you listen with fewer headaches.
– Temperature protection. The M15S regulates itself to be within an optimal temperature range no matter the environmental conditions, including stopping battery charging if necessary.
– Optimized battery charging. In desktop mode the M15S can be used without going through the battery. When not in desktop mode the M15S can be placed in an optimised battery charging mode that prevents the battery from being charged all the way to 100% to prevent premature battery degradation.

Design Features
The rich heritage of this astute company, together with its ever-increasing technical acumen; is conducive to these components featuring a vast array of impressive design ideologies and latest technological advancements.
– Second harmonic adjustment, tailored to your listening preferences.
– Supports micro SD cards. Supports up to 2TB, support for firmware upgrades over micro SD.
– All TO DSD support. Lush and smooth sound right to your ears.
– FiiO Link functionality. Wireless control and instant adjustments.
– 5G + 2.4G dual-band Wi-Fi for faster and more stable connections.
– Bluetooth 5.0 supported transmission includes SBC, AAC, aptX, aptX HD, LDAC and LHDC.
– Bluetooth 5.0 supported reception includes SBC, AAC, aptX, aptX HD, aptX LL, LDAC and aptX Adaptive.
– Extremely fast transfer. with USB 3.0 writing speeds can hit up to 100 M/s, allowing file transfers to complete within minutes or even seconds.
– Supports Roon Ready. Roon tested with high proficiency in managing related local files and streaming playback.
– External DC adapter.
– Cooling stand with fan.
– PET screen protector with oleophobic layer pre-applied.
– Leather case.
– Micro-SD card ejector pin.
– USB 3.0 data and power cable.
– Aluminum dust plug.

Electrical Specifications
– Nominal configuration: digital audio player
– Central processor unit: Qualcomm Snapdragon 660
– Digital to analogue converter: ES9038PRO
– Picture size: 68 mm x 122 mm
– Resolution: 720 x 1440 x RGB
– Decoding: up to 24bit / 384kHz
– Audio decoder: WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
– Inputs: USB-C
– Outputs: 2.5 mm balanced / 3.5 mm unbalanced / 4.4 mm balanced / 3.5 mm coax
– Frequency response: 20 Hz – 50000 Hz
– Signal-to-noise ratio: 122.5 dB
– Total harmonic distortion: 0.00034 %
– Output impedance: 32 Ohms
– RAM: 4 gb
– Battery life: 10 h
– Storage capacity: 64 gb

Physical Specifications
– Length: 140 mm
– Width: 80 mm
– Height: 18.9 mm
– Weight: 0.345 kg

Documentation
– App download
– Specifications sheet

Important Disclaimers
Given the dynamic nature of electronics industries these days; below are listed some very important specifics you need to be aware of.

Brand Authorization And Stock Sourcing
We are NOT an authorised Australian dealer of this brand. This position can stem from a variety of reasons. Sometimes we don't sell enough to warrant asking for an account. Sometimes we only want specific products from said brand. Sometimes we cannot agree upon certain policies. Sometimes the brand doesn't have an official Australian importer. Whatever beeth the reason; rest assured it's nothing malicious. We've just not seen the need to setup an account hitherto. However being in business for so many decades is conducive to us being good friends with those who are authorised dealers of this brand. Meaning it'll be sourced through legitimate channels.

Pricing Structure
Whilst we endeavor to offer the best price possible, we ask that if you do find a better price elsewhere from an authorised dealer; please contact us. Also be aware that we regularly conduct group buys and sales, therefore pricing can sometimes be subject to change without notice.

Stock Structure
Being a dynamic store is conducive to our inventory constantly changing. We list only a small portion of our stable online, usually products most popular. Aside from these we also stock numerous other variants and configurations of these products, hence if you don’t see what you’re after please contact us.

Shipping
All our products are shipped with registered and insured postage. Upon ordering you’ll be issued with a receipt, a consignment note via which you can track your order, and we’ll also SMS you photos of the package for identification purposes.

Technical support
This last one we cannot emphasise enough! Please contact us if you require any further information or assistance with the setup and use of this product, especially pertaining to aspects more technical. As we want you to get the very best from this product.