Q3 MQA_parameters

Q3 MQA
Q3

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General specifications
Name/Model	Q3	Hardware scheme	DAC: AK4452，USB: XMOS XU316，AMP：THX_AAA_28*2
Color	Black	Volume Scroll	Potentiometer+ADC Sampling
Weight	≈110g	FiiO Control	No
Dimensions	105mmx59mmx12.5mm	Samplig rate indication	Blue＝PCM Green ＝DSD Magenta＝MQA
MQA full decoder	8x	Recommended headphone impedance	PO:16~100Ω BAL:16~300Ω
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	USB	TYPE C USB
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
THD+N	<0.0012%(1kHz/-6dB@32Ω)	SNR	≥ 115dB (dbA)
Frequency response	20Hz~50kHz: (±:1.5dB)	Noise floor	Gain = H,≤ 5uV(dbA)
Frequency response	20Hz~20KHz:(±:0.3dB）	Noise floor	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)
Frequency response	20 Hz-20KHz: (±:0.3dB)	Noise floor	Gain = L,≤ 7.5uV(dbA)
Balanced output performance parameters（4.4mm/2.5mm，Line IN)
Output power	265mW(16Ω,THD+N<1%)	Output impedance	≤ 2.6 Ω
	370mW(32Ω,THD+N<1%)	Crosstalk	≥ 100dB
	105mW(300Ω,THD+N<1%)	Output level	3.5Vrms
THD+N	<0.0007%(1kHz/1.15V@32Ω)	SNR	≥ 120dB (dbA)
THD+N	<0.0007%(1kHz/1.15V@32Ω)	Noise floor	≤ 3.5uV(dbA)
Frequency response	20Hz-20KHz:(±:0.2dB)

Frequency Response Curve 1
Test conditions: USB DAC input,-5dB sinusoidal signal, 20Hz-20kHz, headphone output (32 Ω load)
Red: left channel; Blue: right channel

Frequency Response Curve 2
Test conditions: USB DAC input,-5dB sinusoidal signal, 20Hz-50kHz, headphone output (32 Ω load)
Red: left channel; Blue: right channel

Frequency Response Curve 3
Test conditions: USB DAC input,-5dB sinusoidal signal, 20Hz-20kHz, balanced output (32 Ω load)
Red: left channel; Blue: right channel

Frequency Response Curve 4
Test conditions: USB DAC input,-5dB sinusoidal signal, 20Hz-50kHz, balanced output (32 Ω load)
Red: left channel; Blue: right channel

distortion plot 2

Test condition: USB DAC, play-2dB high gain sinusoidal signal, 20Hz-20kHz,BAL output (32 Ω load)

distortion graph 3

Test condition: USB DAC, play-2dB high gain sinusoidal signal, 20Hz-20kHz,BAL output (32 Ω load)

distortion graph 1

Test condition: USB DAC, play-6dB high gain sinusoidal signal, 20Hz-20kHz,PO output (32 Ω load)

frequency response curve 5
Test conditions: Line IN input,-5dB sinusoidal signal, 20Hz-20kHz, balanced output (32 Ω load)
Red: left channel; Blue: right channel