FiiO M11S Digital Audio player adopts the high-performance model "ES9038Q2M" of the DAC chip for portable made by ESS Technology. As a result, the M11S supports playback of PCM384kHz and DSD256 (up to DSD128 during USB input DoP playback).

In addition, it has a dual configuration with one "ES9038Q2M" installed in each of the left and right audio channels, and uses all the capabilities of the DAC chip that can originally reproduce the left and right channels with only one channel. Combined with FiiO's new-generation amplifier circuit it provides a pure audio experience unique to a player created for music playback while having extremely high output.

Digital Audio Purification System - that makes full use of 4th generation FPGA + femtosecond clock crystal oscillator

The M11S uses the same FPGA-based digital domain signal processing circuit + femtosecond clock crystal oscillator as the high-end model M11 Plus ESS, "Digital Audio Purification System (DAPS)".

The digital data sent from the SoC goes through FiiO's proprietary 4th generation FPGA equipped with FiiO's unique PLL technology, and is precisely processed as a digital audio signal within the FPGA so that the DAC can easily demonstrate its true value. . Two ultra-low jitter femtosecond clock crystal oscillators for 44.1 kHz and 48 kHz built into DAPS provide a highly accurate and low-jitter master clock for the entire digital audio circuit, resulting in clean and extremely high performance. Realizes D/A conversion with high fidelity.

Powerful drive power of 670mW (at 32Ω, balanced output) and low noise suitable for the latest generation

The M11S is equipped with a new-generation headphone amplifier circuit newly developed by FiiO, making full use of the experience cultivated through cooperation between FiiO and THX. It demonstrates a powerful drive power of 670mW (at 32Ω, balanced output) that exceeds its class, and achieves one of the lowest noise floors of all DAP products of 1.9uV. Achieved 62% noise reduction compared to conventional models.

Even when paired with a highly sensitive IEM, the detailed sound that rises from silence brings out the beauty of music that is unique to a player created for music playback.

Separate design power supply circuit that achieves low noise, high stability, and high durability.

The power supply circuit of the M11S has independent power supplies for the left and right DAC chips, the I/V conversion section, the pre-stage low-pass filter section, and the amplification expansion circuit. By providing optimal and powerful power supply to each of the important sections related to sound quality, the true value of each component can be demonstrated, and the dynamics of music can be reproduced at a higher level.

Smooth operation with Qualcomm 8-core SoC "Snapdragon 660"

The M11S is equipped with Qualcomm's SoC "Snapdragon 660", which uses a core architecture consisting of four large and small parts that provide smooth operation like a smartphone. This chip has the ability to handle heavy tasks such as video playback and games, while operating at ultra-low power consumption when playing music, realizing long continuous playback time. increase.