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FiiO Q3 MQA THX Portable Balanced Headphone DAC/Amp (Open Box)

Product SKU: Q3 MQA


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Product Details

(Specifications and appearance of this product are subject to change without notice)
↓ Details provided by FiiO

Q3 MQA Portable DAC and Amplifier

All-new XMOS XU316 chip | Efficient AK4452 DAC THX AAA-28x2 amps | Fully supports MQA decoding Dual power supply design | ADC volume adjustment All-new strapping kit | RGB indicator | Two gain levels

Inside and out, absolute brilliance

The Q3 MQA Edition is equipped with the next-generation XMOS XU316 controller chip, among the latest for use in USB DACs. The XU316 features 16 cores made in an advanced manufacturing process, bringing high-performance processing and allowing support up to PCM 384kHz/32 bit and DSD256 high-resolution audio formats.

Meticulously tuned, classic relaxed sound

Due to the disrupted supply of AKM DAC chips, the Q3 MQA employs the AKM AK4452. Through numerous adjustments, this chip was tuned so that its performance is similar to that of the DAC in the original Q3 and with even slightly improved power output. The Q3 MQA still features the same charming sound that made the original Q3 so beloved.

Extraordinary sound, THX AAA-28x2 amplifiers

Featured in the Q3 MQA Edition are two THX AAA-28 amplifiers, allowing for a max power output of 330mW (370mW when using Line in mode). Experience hugely powerful, extraordinary sound.

At the audio forefront Fully supports MQA decoding

Thanks to the powerful XMOS XU316, the Q3 now fully supports decoding the MQA format, allowing you to unfold and render any MQA folder when using a player that supports MQA.

Vivid life Dual power supply design

Comfortably use the Q3 MQA Edition in any scenario, whether as a portable device or a static device on your desk. Quickly switch between how the Q3 MQA Edition is being supplied power using the Charge switch on the bottom. Using AUX in the battery life is up to 23+ hours, and when using USB in the battery life is up to 12+ hours.

Experience upgraded All-new strapping kit design

The all-new strapping kit designed to bundle together the Q3 MQA Edition to your phone greatly improves upon the experience from before. The innovative X-shaped straps no longer block the display of your phone, and the intermediate films protect your device and prevent the Q3 MQA Edition and your phone from being misaligned when strapped together.

Colorfully cool RGB indicator light

The RGB indicator light is not only striking, but also instantly lets you know the current audio track’s specs and sampling rate.

Blue: PCM
Green: DSD
Magenta: MQA

Smooth experience Thanks to ADC volume adjustment

The ADC curve reconstruction method for adjusting volume not only effectively solves the problems of channel imbalance and noise, it also greatly improves the accuracy when adjusting the volume. Relish in making the volume just right for you.

Feel richness of music
Two gain levels & BASS boost

The gain and BASS boost buttons allow you to tailor the sound to different styles and to your liking, letting you better appreciate the richness of music. The BASS boost is achieved in hardware, allowing a bass boost up to 6dB without affecting the higher frequencies. 

Listen the way you want
Numerous audio outputs

Listen to your music the way you want through either the 3.5mm single-ended output or through the 2.5/4.4mm balanced outputs.

Generous accessories

  • USB A to Type-C data cable*1
  • 3.5mm to 3.5mm audio cable*1             
  • Type-C to Type-C data cable*1
  • Lightning to Type-C data cable*1
  • X-type silicone strap*1
  • Silicone straps (long)*2
  • Silicone straps (short)*2
  • Silicone anti-skid feet*1
  • Post-sale warranty card*1
  • Quick start guide*1 


General specifications
Name/Model Q3

Hardware scheme


Color Black

Volume Scroll

Potentiometer+ADC Sampling

Weight ≈110g FiiO Control


Dimensions 105mmx59mmx12.5mm

Samplig rate indication


Green =DSD


MQA full decoder 8x

Recommended headphone impedance

Maximum supported sampling rate/DSD PCM384kHz-32bit/DSD256

Firmware upgrade

System firmware and XMOS can be upgraded via USB

Buttons and interfaces

Button One button for Gain, Reset and UAC1.0


Switches Charge switch, bass switch

Headphones ports

3.5mm(phone out/line in), 4.4mm, 2.5mm (Bal to unbal adapters are prohibited)

Power parameters

Power supply 5V 2A Battery capacity 1800mAh
Charging time <2h    

Battery life and test conditions

3.5mm output:≥13h | 2.5mm/4.4mm output:≥12h

Audio in USB IN Gain Low
BASS Off Tracks MP3 44.1KHz/16bit
Charge Off Load 32Ω

2.5mm/4.4mm output:≥23h

Audio in USB IN Gain Low
BASS Off Tracks MP3 44.1KHz/16bit
Charge Off Load 32Ω
Audio parameters

Headphone output performance parameters (3.5mm output)

Output power 175mW(16Ω,THD+N<1%)

Output impedance

≤ 1 Ω
160mW(32Ω,THD+N<1%) Crosstalk ≥ 76dB
18mW(300Ω,THD+N<1%) Output level 2.3Vrms




≥ 115dB (dbA)

Frequency response

20Hz~50kHz: (±:1.5dB)

Noise floor

Gain = H,≤ 5uV(dbA)
20Hz~20KHz:(±:0.3dB) Gain = L,≤ 5uV(dbA)

Balanced output performance parameters(4.4mm/2.5mm,UAC IN)

Output power 280mW(16Ω,THD+N<1%) Output impedance ≤ 2.6 Ω
330mW(32Ω,THD+N<1%) Crosstalk ≥ 99dB
40mW(300Ω,THD+N<1%) Output level 3.3Vrms
THD+N ≤ 0.001%(1kHz/-4dB@32 Ω) SNR ≥ 118dB (dbA)
Frequency response 20 Hz-50KHz: (±:1.8dB) Noise floor Gain = H,≤ 7.5uV(dbA)
20 Hz-20KHz: (±:0.3dB) Gain = L,≤ 7.5uV(dbA)

Balanced output performance parameters(4.4mm/2.5mm,Line IN)

Output power


Output impedance

≤ 2.6 Ω


≥ 100dB

Output level





≥ 120dB (dbA)

Noise floor

≤ 3.5uV(dbA)

Frequency response




Product Model Q3 MQA Q3 Q5s Q1 Mark II / FQ1222
General Specifications
Color Available Black Black Titanium Black
Dimensions About 105mm x 59mm x 12.5mm About 105mm x 59mm x 12.5mm About 124 mm× 64 mm× 16 mm About 99mm x 59mm x 12.5mm
Weight About 110g About 110g About 195g About 101g
Display N/A N/A N/A N/A
Analog Audio Input Standard 3.5 mm Jack Standard 3.5 mm Jack Standard 3.5 mm Jack Standard 3.5 mm Jack
USB Port Type C USB Type C USB Micro USB
Micro USB
Digital Audio Input N/A N/A Coaxial/Optical input N/A
Headphone Output Standard 3.5mm Jack Standard 3.5 mm Jack Standard 3.5 mm Jack Standard 3.5 mm Jack
Line Output N/A N/A Standard 3.5 mm Jack Standard 3.5 mm Jack
Balance Output 2.5mm /4.4mm Jack 2.5mm /4.4mm Jack 2.5mm /4.4mm Jack 2.5mm Jack
Recommended Headphone Impedance 16~100Ω (PO) 16~100Ω ( PO) 16~150 Ω (AM3E, PO) 16~100Ω ( PO)
16~300Ω (BAL) 16~300Ω (BAL) 16~300 Ω (AM3E, BAL) 16~150Ω (BAL)
Volume Control Analog potentiometer (ADC sampling) Analog potentiometer (ADC sampling) Analog potentiometer (ADC sampling) Analog potentiometer (ADC sampling)
Bass Adjust Yes Yes Yes Yes
Treble Adjust N/A N/A N/A N/A
Balance Adjust 0.2 dB 0.2 dB 0.1 dB 0.2 dB
GAIN Control Yes(High/Low) Yes(High/Low) Yes(High/Low) Yes(High/Low)
Bluetooth N/A N/A Bluetooth 5.0,supports AAC/SBC/aptX/aptX HD/ aptX_LL/LDAC/LHDC N/A
Operation Volume knob + Physical button + Toggle switch Volume knob + Physical button + Toggle switch Volume knob + Physical button + Toggle switch Volume knob + Toggle switch
Replaceable AMP Module N/A N/A Yes N/A

Hardware scheme

DAC: AK4452



DAC: AKM4462


LPF: OPA1662


DAC: AK4493 * 2


Bluetooth: CSR8675

DAC: AKM4452


LPF: OPA1662

AMP: OPA2323+OPA926

LPF:OPA1642×2,Volume IC:NJW1195 AMP:AD8620+OPA92
Extended functions
APP control N/A N/A Yes N/A
Sampling rate indicator Yes N/A Yes N/A
Deep-sleep N/A N/A Yes N/A
Audio Performance (DAC Section)
DSD Support(USB IN) DSD64/128/256 DSD64/128/256/512 DSD64/128/256/512 DSD64/128/256
USB Sample Rate Support 384kHz/32bit 768kHz/32bit 768kHz/32bit 384kHz/32bit
SPDIF Coaxial Sample Rate Support N/A N/A 192kHz/24bit N/A
SPDIF Optical Sample Rate Support N/A N/A 96KHz/24bit N/A
Frequency Response 20Hz ~ 50 kHz (±1.5dB) 6Hz~90 kHz(-3dB) 5Hz~90 kHz(-3dB) 6Hz~80 kHz(-3dB)
THD+N 0.0012% <0.0012% (1 kHz/32Ω) <0.001%(1 kHz/10kΩ) <0.003%(1 kHz/10kΩ)
SNR 115dB(A-weighted USB DAC IN) ≥ 114dB(A-weighted USB DAC IN) ≥ 117dB (AUX IN) ≥ 110dB (A-weighted)
Headphone out specifications (3.5mm headphone out jack)
Output Power  175mW(16Ω,THD+N<1%) ≥150mW(16Ω / THD+N<1%, AUX IN) ≥280mW(16Ω / THD+N<1%, AUX IN) ≥112 mW(16Ω / THD+N<1%, AUX IN)
Frequency Response 20Hz ~ 50kHz: (±1.5dB) 20Hz~65kHz (-3dB) 5 Hz~50kHz (-3dB) 6Hz to 80kHz (-3dB)
SNR ≥ 115dB (dbA) ≥ 114dB (A-weighted, AUX IN) ≥115 dB (A-weighted) ≥115 dB (A-weighted, AUX IN)
Output impedance ≤ 1 Ω <1.2 Ω(32 Ω loadde) <1.2Ω(32Ω loaded) <1.2 Ω
Crosstalk ≥76dB (1 kHz,AUX IN) ≥75dB (1 kHz, AUX IN) ≥75dB (1 kHz,AUX IN) ≥79dB (1 kHz,AUX IN)
THD+N <0.0012%(1kHz) <0.0012% (1 kHz) <0.001% (1 kHz) <0.002% (1 kHz)
Power and Battery
Power/Charger DC5V 2A DC5V 2A DC5V 2A DC5V 2A
Low Battery Warning Yes Yes Yes No
Battery Capacity 1800mAh 1800mAh 3800mAh 1800mAh
Battery Life 3.5mm output: ≥ 13h >19h (AUX IN) >24h (AUX IN) >20h(AUX IN)

2.5mm/4.4mm balanced output: ≥ 12h(USB DAC)

>10h (USB IN) >9.5h (USB IN) >10h (USB IN)

2.5mm/4.4mm balanced output: ≥ 23h(Line in)

  >9.5h (OPT IN)  
    >9.5h (COAX IN)  
    >9.5h (Bluetooth IN)  

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