9. What are the main differences between Q3 MQA and Q3?

Parameters Comparisons Between Q3 and Q3 MQA
General Specifications
  Q3 MQA Q3
Color Available Black Black
Dimensions about 105mm x 59mm x 12.5mm About 105mm x 59mm x 12.5mm
Weight About 110g About 110g
Analog Audio Input Standard 3.5 mm Jack Standard 3.5 mm Jack
USB Port Type C USB (charging/data transmission) Type C USB
Headphone Output Standard 3.5mm socket Standard 3.5 mm Jack
Line Output N/A N/A
Balance Headphone Output 2.5mm /4.4mm Jack 2.5mm /4.4mm Jack
Headphone Impedance Range 16~100Ω (PO) 16~100Ω ( PO)
16~300Ω (BAL) 16~300Ω (BAL)
Volume Control analog potentiometer (ADC sampling) ADC volume adjustment
Bass Adjust Yes Yes
Treble Adjust N/A N/A
Balance Adjust N/A 0.2 dB
GAIN Control Yes(High/Low) Yes(High/Low)
Bluetooth N/A N/A
Operation Volume knob + Toggle switch Volume knob + Physical buttons + Toggle switch
Chip Used DAC: AK4452,USB: XMOS XU316,AMP:THX_AAA_28*2 DAC: AKM4462,USB: XMOS XU208,AMP: THX_AAA28*2
Audio Performance (DAC Section)
DSD Support(USB IN) DSD64/128/256 DSD64/128/256/512
USB Sample Rate Support 384kHz/32bit 768kHz/32bit
Frequency Response 20Hz ~ 50 kHz (attenuation: 1.5dB) 6Hz~90 kHz(-3dB)
THD+N 0.00% <0.0012% (1 kHz/32Ω)
SNR 115dB(A-weighted USB DAC IN) ≥ 114dB(A-weighted USB DAC IN)
Headphone out specifications (3.5mm headphone out jack)
Output Power 1 175mW(16Ω,THD+N<1%) ≥150mW(16Ω / THD+N<1%, AUX IN)
Frequency Response 20Hz ~ 50kHz: (attenuation: 1.5dB) 20Hz~65kHz (-3dB)
SNR ≥ 115dB (A-based) ≥ 114dB (A-weighted, AUX IN)
Output impedance ≤ 1 Ω <1.2 Ω(32 Ω loadde)
Crosstalk ≥76dB (1 kHz,AUX IN) ≥75dB (1 kHz, AUX IN)
THD+N <0.0012%(1kHz/-6dB @ 32 Ω) <0.0012% (1 kHz, AUX IN)
Power and Battery
Power/Charger DC5V 2A DC5V 2A
Charging Indicator N/A N/A
Charging display have Yes
Low Battery Warning (every 3 seconds, the red light flashes 2 times) Red light flashes twice every 5 seconds
Battery Capacity 1800mAh 1800mAh
Battery Life 2.5mm/4.4mm balanced output: ≥ 23h(Line IN)
3.5mm earphone output: ≥ 13h
2.5mm/4.4mm balanced output: ≥ 12h(USB decoding)
>19h (AUX IN)
>10h (USB IN)
Other differences
  1. The Q3 MQA uses an all-new barcode with Q3AK4452.
  1. The package box of Q3 MQA is newly designed in a science fiction style, and adds an MQA logo.
  1. The back panel of Q3 MQA adds VELVET SOUND logo.
  1. The Q3 MQA comes with X-type silicone strap and silicone straps, with no storage bag.