Product Description
AKM flagship DAC combo
AK4191EQ AK4499EX
Like the Q15 and K9 AKM, the M23 utilizes the flagship AKM DAC combo the AK4191EQ+AK4499EX. It is a new design that totally separates the digital and analog portions and also features the "DWA ROUTING Technology" to further improve the signal-to-noise ratio. These technologies allow for a purer audio background and for higher resolution audio - resulting in a relaxed yet natural sound.
Patented desktop mode activated with one click
For the first time on FIIO players, the M23 features a switch specifically to toggle desktop mode (D.MODE). When desktop mode is activated, the M23 is completely powered by an external power source. The built-in battery will neither be charged nor discharged, which ensures the M23 can be used as desktop equipment without fear of damaging the battery.
Independent Type-C power port unlimited power
On the M23 are two USB Type-C ports, one of which is dedicated to accepting power only (POWER IN). When this dedicated power Type- C port is connected to fast charging, the Super High Gain Mode can be activated for more gain and more output power. In this mode, the output power can reach up to 1000mW+1000mW per channel making the M23 better suited for pushing high impedance headphones. While in this mode, the other Type-C port does not consume any power and thus makes it suitable to connect the M23 to a phone for use as a USB DAC.
All new THX AAA 78+ amp design truly balanced 8-way parallel amplification
The THX AAA 78 headphone amplifiers as used in the M11 Plus and M11 Pro have been widely praised by audiophiles around the world. After several years of continuing to refine the design, we introduce the THX AAA 78+ amplifier architecture in the M23. It allows for greater power output with high fidelity, resulting in powerful sound reproduced with extreme accuracy.
High caliber HiFi audio architecture 4 gain levels
In the M23 is a high caliber audio architecture consisting of DAC, IV, LPF, voltage amplification, and parallel amplification stages. Responsible for handling the I/V and LPF stages are 2 low-noise and high-precision OPA1612 op-amps. The voltage amplification is taken care of by 2 low-noise and high- bandwidth OPA1662 op-amps. Together, these op-amps ensure audio signals are accurately played back at ample power outputs so that a huge variety of headphones and IEMs can work well with the player, which can be further better dialed in thanks to the four levels of gain.
28 high-capacity polymer tantalum capacitors
Among the M23's DAC, I/V, LPF, and THX amp power sections are 28 high-capacity polymer tantalum capacitors that store large reserves of energy to be unleashed when needed - to ensure a robust power supply and ultimately powerful sound.
4-stage 20-rail power supply for accurate and consistent sound
FIIO's great experience in designing portable HiFi audio player power supplies is in full show on the M23. With a four-stage and 20-smaller rail power supply, the M23 is fully equipped with a robust power supply that provides a solid foundation for both the analog and digital portions of the audio circuit.
Independent digital and analog power supplies
Having independent digital and analog power supplies offers the best of both worlds - digital audio is handled more accurately while analog audio remains pure for an overall better sound.
Analog audio power supply
The analog audio power supply not only has separate rails for the DAC, small signal amplification and large amplification parts, but also employs four stages of power processing - OVP, adaptive voltage stabilization, high-efficiency voltage boosting, ㅠ filtering, and LDOO voltage stabilization. All in all, this means that the portable M23 has a power supply design comparable to those of desktop equipment
Dual-mode fast charging safe 30W charging
The M23 employs a dual-mode fast-charging system that utilizes extreme fast-charging + normal fast charging. At a lower battery state of charge, extreme fast-charging is used to safely allow for up to 30W charging speeds. When the battery gets close to a full state of charge, the M23 switches to slightly slower normal fast-charging, which allows for greatly improved charging times while still maintaining battery health.
Large 5500mAh battery | durability incarnate
Specially selected low-resistance fast-charging batteries that employ high-temperature resistant material are paired with technologies such as a low resistance MOS protection board to ensure the batteries will last a long time.
DAPS Digital Audio Purification System
Bit perfect
The DAPS (Digital Audio Purification System) as featured on the M23 consists of both the FIIO-developed HiFi audio core that bypasses the original Android version plus a low-jitter clock co- processor. Together, the system not only provides a unified high- precision, low-jitter clock source but also ensures that the original sampling rate of the audio stream (both PCM and DSD) is preserved no matter if you are using FIIO Music, third-party apps, USB DAC mode, etc. By avoiding audio resampling, you can be sure the audio is that much closer to its original intent
Global PEQ global ALL TO DSD
The 10-band PEQ with FIIO's proprietary tuning algorithm can be used in any operating mode. Through an intuitive interface users can adjust the EQ's frequency points, gain, bandwidth, and Q value- allowing users to fine tune or even correct the headphone's frequency response curve exactly to their taste. Additionally, users can activate the ALL TO DSD function in any operating mode, allowing them to more easily experience the beauty of audio in different formats.
6 operating modes | 6 smooth experiences
On the M23 you can use six different operating modes: Roon Ready*, Android, Pure Music, Bluetooth, and AirPlay - all of which you can switch between quickly letting you enjoy your music the way you want. But its powerful abilities don't stop there the M23 can also stream music over DLNA by - retrieving music from NAS, local networks, and cloud servers through UPNP/SMB/WebDav
*Roon Ready certification is currently in progress Please stay tuned for further official updates from FIIO
Simply timeless a true classic
FIIO's classic hexagonal honeycomb design with its 3D cuts and distinct edges is a bold yet attractive look. Choose between aluminum alloy and stainless steel versions, each version with its own exquisite and distinct look and feel. Whether looking at the black or blue versions, each adorned with an electroplated tempered glass panel on the back, bear witness to an intricate labyrinth where light and shadow play off of each other tastefully. The 5.5-inch high- definition display with a golden 18:9 aspect ratio both looks and feels great to use.
Key Features
- Desktop mode
- AKM AK4191EQ+AK4499EX combo
- 4-way fully balanced
- THX ΑΑΑ 78+ amp 1000mW+1000mW high power
- 4-stage 20-rail power supply
- Fully unified HiFi audio architecture
- DAPS Digital Audio Purification System
- Dual-mode fast charging
- Dual Type-C ports
Technical Specifications
- General
- Name/Model: M23
- Hardware solution: SoC: Snapdragon 660, DAC: AK4191EQ+AK4499EX, Amp: 4-way THX AAA-78+, charging: AW32271
- Working mode: Android/Pure music/USB DAC/Bluetooth Receiving/AirPlay/Roon Ready
- Color: Deep blue/Stainless steel
- Dimensions: About 75.7x136.5x18.1mm
- Weight: About 299g (Deep blue)/About 392.3g (Stainless steel)
- Display: 5.5-inch bezel-less screen (1440*720 resolution ratio)
- Volume: control way Slide or button control
- RAM: 4GB
- Internal storage/available space (ROM): 64GB/about 46GB
- Memory card: Single microSD card expansion, up to 2TB in theory)
- Gain mode: Super High (for fast charge)/High/Medium/Low Gain modes
- Channel balance: L20~R20 (0.5dB per level)
- Adaptive impedance:
- PO: 8~150Ω
- BAL: 8~350Ω
- Buttons and Ports
- Buttons:
- Power button*1
- Multifunction button*1
- volume touch panel*1
- Play/Pause*1
- Previous track*1
- Next track*1
- Toggle switch:
- HOLD*1
- D.MODE*1
- Headphone out: 3.5 mm
- Line output: 3.5 mm (shared PO)
- BAL headphone: out 4.4 mm
- BAL line output: 4.4 mm (shared BAL)
- COAX headphone out: 3.5 mm (shared PO, supports up to 384kHz-24bit/DSD128)
- USB: Type-C USB3.0*1 (charging/data transmission)+Type-C POWER IN*1 (Charging/Independent power supply)
- Buttons:
- Characteristics
- WiFi: 2.4GHz/5GHz, supports multimedia service (DLNA), AirPlay, WiFi song transfer, Roon Ready, etc.
- Bluetooth: transmission (5.0) SBC/AAC/aptX/aptX HD/LDAC/LHDC
- Bluetooth: reception (5.0) SBC/AAC/LDAC
- FIIO: Link Android supports WiFi and Bluetooth control, iOS supports WiFi control
- MQA: Supports MQA full decoding
- All to DSD: Supported
- Double tap to wake up: Supported
- In-vehicle mode: Auto on/off following the USB of the vehicle
- Max supported sampling rate:
- Local decoding: up to 384kHz-32bit/DSD256
- USB DAC: up to 384kHz-32bit/DSD256
- USB Audio: 768kHz-32bit/DSD512 (supports DoP/D2P/Native)
- Power off timers: Supports Sleep/Idle power off
- EQ adjustment: 10-band dynamic EQ adjustment (±12dB), built in 8 types of preset EQ, self-define EQ, supports PEQ
- System navigation mode: Supports gesture navigation, 2-button navigation and 3-button navigation
- Firmware upgrade: Supports upgrade from local storage/memory card/OTA
- Power Supply Parameters
- Power Supply: Supports QC3.0, QC4.0, PD2.0, PD3.0 PPS fast charge
- Battery capacity: 5500mAh
- Charging time: About 2.5 hours (PD3.0 fast charge mode)
- Standby time: ＞1000h
- Battery life and test conditions
- 3.5mm headphone out: 10.5 hours
- Volume level: 52
- Gain level: High gain
- Display status: OFF
- Playing track and format: MP3 44.1kHz/16bit
- EQ: OFF
- Load: 32Ω
- 4.4mm BAL headphone out: 9 hours
- Volume level: 41
- Gain level: High gain
- Display status: OFF
- Playing track and format: MP3 44.1kHz/16bit
- EQ: OFF
- Load: 32Ω
- 3.5mm headphone out: 10.5 hours
- Audio Parameters
- Parts of performance and parameters of PO (Super High Gain mode)
- Output power:
- L+R≥480mW+480mW (16Ω , THD+N＜1%)
- L+R≥440mW+440mW (32Ω, THD+N＜1%)
- L+R≥60mW+60mW (300Ω, THD+N＜1%)
- Output impedance: <1Ω
- THD+N & Noise: ≤0.00038% (1kHz/-6dB@32Ω)
- SNR: ≥125dB (A-weighted)
- Crosstalk: ≥72dB (1kHz@32Ω)
- Noise floor: ≤1.9μV (A-weighted)
- Frequency response:
- 20Hz~20kHz: damping<0.1dB
- 20Hz~80kHz: damping<1.1dB\
- Peak output voltage: 12 Vp-p
- Output power:
- Parts of performance and parameters of PO (High gain)
- Output power:
- L+R≥235mW+235mW (16Ω , THD+N＜1%)
- L+R≥125mW+125mW (32Ω, THD+N＜1%)
- L+R≥15mW+15mW (300Ω, THD+N＜1%)
- Output impedance: <1Ω
- THD+N & Noise: ≤0.00046% (1kHz/-4.1dB@32Ω)
- SNR: ≥120dB (A-weighted)
- Noise floor: ≤1.9μV (A-weighted)
- Frequency response:
- 20Hz~20kHz: damping<0.1dB
- 20Hz~80kHz: damping<1.1dB
- Peak output voltage: 6 Vp-p
- Output power:
- Parts of performance and parameters of PO (Super High Gain mode)
- Parts of performance and parameters of line-out
- THD+N & Noise: ≤0.00043% (1kHz/0dB@10kΩ)
- SNR: ≥126dB (A-weighted)
- Crosstalk: ≥110dB (1kHz@10kΩ)
- Noise floor: ≤1.1μV (A-weighted)
- Frequency response:
- 20Hz~20kHz: damping<0.1dB
- 20Hz~80kHz: damping<1.1dB
- Line output level: 2.0Vrms
- Parts of performance and parameters of BAL headphone out (Super High Gain mode)
- Output power:
- L+R≥730mW+730mW (16Ω , THD+N＜1%)
- L+R≥1000mW+1000mW (32Ω, THD+N＜1%)
- L+R≥240mW+240mW (300Ω, THD+N＜1%)
- Output impedance: <2Ω
- THD+N & Noise: ≤0.00038% (1kHz/-12dB@32Ω)
- SNR: ≥125dB (A-weighted)
- Crosstalk: ≥117dB (1kHz@32Ω)
- Noise floor: ≤3.1μV (A-weighted)
- Frequency response:
- 20Hz~20kHz: damping<0.1dB
- 20Hz~80kHz: damping<1.1dB
- Peak output voltage: 23.5 Vp-p
- Output power:
- Parts of performance and parameters of BAL headphone out (High Gain mode)
- Output power:
- L+R≥630mW+630mW (16Ω , THD+N＜1%)
- L+R≥475mW+475mW (32Ω, THD+N＜1%)
- L+R≥55mW+55mW (300Ω, THD+N＜1%)
- Output impedance: <2Ω
- THD+N & Noise: ≤0.00039% (1kHz/-5.7dB@32Ω)
- SNR: ≥122dB (A-weighted)
- Crosstalk: ≥115dB (1kHz@32Ω)
- Noise floor: ≤3.1μV (A-weighted)
- Frequency response:
- 20Hz~20kHz: damping<0.1dB
- 20Hz~80kHz: damping<1.1dB
- Peak output voltage: 11 Vp-p
- Output power:
- Parts of performance and parameters of BAL line-out
- THD+N & Noise: ≤0.00033% (1kHz/-10.3dB@10kΩ)
- SNR: ≥129dB (A-weighted)
- Crosstalk: ≥106dB (1kHz@10kΩ)
- Noise floor: ≤1.4μV (A-weighted)
- Frequency response:
- 20Hz~20kHz: damping<0.1dB
- 20Hz~80kHz: damping<1.1dB
- Line output level: 4.0Vrms
