FIIO M23 from authorized Japanese Digital audio player DAP AKM AK4499EX AK4191EQ THX FIIO [Ships store] AAA-78+

---------------------------------------------------------------------- 【Cautions for using electrical products】 When using electrical appliances, please note that the voltage is different from that of Japan, which may cause malfunctions. Since the plug type is Japan type(A or B type), please check the voltage and use a transformer. Please note that a transformer is different from a conversion adapter. We are not responsible for malfunctions caused by use without a transformer.

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ----------------------------------------------------------------------

Equipped with AKM flagship separate DAC system "AK4191EQ + AK4499EX": The M23 uses AKM's latest generation flagship DAC "AK4191EQ + AK4499EX". This DAC system uses a separate DAC system consisting of the AK4191EQ, which handles the digital filter and delta-sigma modulation, and the AK4499EX, which handles the analog DAC. In addition to separating the completely different functions of digital processing and analog processing at the chip level, we have combined "DWA Routing Technology" that equalizes individual differences in resistance elements to improve the S/N ratio at the chip level. Masu. This is a new generation DAC system that is not only numerically improved from the previous flagship model, but also pays close attention to the expression of texture. The M23 supports playback of PCM384kHz/32bit, DSD256 as a DAP and USB DAC, and supports PCM768kHz/32bit, DSD512 when transmitting via USB. Implements "DESKTOP MODE" that achieves high output of up to 1000mW: M23 implements FIIO's patented technology "DESKTOP MODE". With this function, power is supplied to the dedicated Type-C port on the main unit for power supply, and by setting it to balanced output + super high gain mode, a high output of up to 1000mW is possible, making it suitable for desktop headphone amplifiers. We have achieved the output and sound quality that approaches you. In addition, by supplying external power through the power supply port, power consumption from the Type-C port for audio signals can be cut, allowing long-term use with reduced power consumption of the transmitting device. Equipped with THX's patented amplifier technology "AAA-78+" amplifier: The M23 is equipped with two "THX AAA-78+" headphone amplifier circuits jointly developed by FIIO and THX. The THX AAA-78+ amplifier is a further refinement and improvement of the widely acclaimed THX AAA-78 used in the M11 plus and M11 Pro, and features THX's patented feedforward correction technology and neutral sound quality. It is characterized by a design method that has been pursued. You can experience the fading of the sound and the details faithfully restored on the sound stage, giving you the feeling of being in a recording studio. The headphone amplifier section of THX AAA-78+ has evolved to the second generation based on the AAA-78 circuit, and has sharp low-frequency driving power brought from four amplifier circuits per channel, and further noise that is not noticeable even in IEMs. We have achieved low noise. Audio signal circuit design refined for even higher sound quality: In the M23, we have further refined the audio circuit design of the DAC, I/V, LPF, voltage amplification, parallel drive, etc. The I/V section and LPF section each use two low-noise, high-precision operational amplifiers OPA1612. Furthermore, the voltage amplification section uses two low-noise, high-bandwidth operational amplifiers OPA1662 to ensure high quality sound. By enabling accurate reproduction of frequency characteristics and exhibiting stronger drive capability, it is designed to be ideal for driving IEMs and various headphones and headsets. Equipped with two USB Type-C terminals and supports 30W fast charging that can charge 80% in about 1 hour: The M23 uses specially selected low resistance fast charging, allowing charging speeds of up to 30W. We realized this. It can be charged to 80% in about 1 hour of charging, and can be charged for more than 8 hours of playback time. By appropriately controlling the charging mode of the battery, we are able to achieve rapid charging in a short period of time while ensuring longevity. adopts a large capacity of 5500mAh, and ensures high reliability, long life, and safety by considering the design of the protection circuit and selection of materials. "Digital audio purification system" using 4th generation FPGA + NDK femto clock crystal oscillator: The M23 is fully equipped with digital domain signal processing circuits centered on FPGA, which is the key to digital signal processing. Adopts a newly designed Digital Audio Purification System (DAPS). The digital data sent from the SoC is passed through the 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 demonstrate its true potential. Two custom-made NDK femto-clock crystal oscillators with ultra-low jitter built into the DAPS provide a high-precision, low-jitter master clock for the entire digital audio circuitry, ensuring clean, extremely high fidelity. We are proud of our D/A conversion. Employs an outstanding power supply design with high precision integration created by years of experience: Incorporating the power supply design know-how that FIIO has cultivated over the years, we have created the optimal power supply design for audio. The precisely designed power supply circuit consists of a network of 4 systems and 20 lines, forming the basis of stable electroacoustics for digital and analog independently. This maximizes the system's potential, achieving performance comparable to desktop audio. Smooth operation with Qualcomm's 8-core SoC "Snapdragon 660": M23 is equipped with Qualcomm's SoC "Snapdragon 660", which uses a core architecture consisting of four large and small cores to provide smooth operation like a smartphone. is installed. This chip has the ability to handle heavy tasks such as video playback and gaming, while operating at ultra-low power consumption when playing music, allowing for long continuous playback times. Masu. Mechanical design that separates the digital core module, DAC, and HP amplifier section to ensure rigidity: The M23 has a design in which the core circuit blocks such as the digital core module, DAC, and HP amplifier section are separated and independent, and is also shielded. By doing so, crosstalk and external noise effects are suppressed to the utmost. In addition, specially designed metal parts are placed in all connectors and ports to ensure structural strength. This achieves high durability and reliability. The large capacity is housed in a stainless steel metal case, ensuring heat dissipation and robustness, and is designed to be safer and have a longer lifespan. Compatible with codecs such as LDAC/aptX HD for high-quality Bluetooth audio playback: M23 is also ideal for Bluetooth wireless use. In addition to SBC/AAC/aptX, Bluetooth transmission also supports high-resolution wireless compatible codecs such as aptX HD/LHDC/LDAC. It can also be used as a Bluetooth receiver and supports SBC/AAC/LDAC. M23 is the latest generation model of the M11Plus series, which has a reputation as a core model of digital audio players. The DAC uses AKM's flagship separate system "AK4499EX + AK4191EQ", and the amplifier uses THX patented technology amplifier "AAA-78+". We have newly implemented "DESKTOP MODE" with home use in mind, and have achieved a maximum output of 1000mW. Another feature is its high usability, which allows it to be used optimally in any situation.