Model Name Q1 Mark II Q1 ALPEN 2-E17K
General Specifications
Color Available Black Black Black
Dimensions About 99mm x 59mm x 12.5 mm 97mm x 56mm x 13.1mm 104.1 mm×62.2 mm×12.8 mm
Weight About 101g  100 g 110 g
Displayer N/A N/A OLED 128×64/1.3 inch
Analog Audio input 3.5 mm Jack 3.5 mm Jack 3.5 mm stereo Jack
Digital Audio input Micro USB Micro USB Micro USB/ Coaxial input (3.5mm jack)
Headphone output 3.5 mm stereo jack 3.5 mm stereo Jack 3.5 mm stereo Jack
Balance Headphone Output Supported (2.5mm balanced headphone jack) N/A N/A
Line Output 3.5 mm stereo Jack 3.5 mm stereo Jack Dock(Micro USB)/3.5 mm Line Out port
Headphone Impedance Range

16~100Ω(PO)

16~150Ω(BAL)

16~150 Ω (PO) 16~150 Ω (PO)
Volume Control TOCOS  Potentiometer TOCOS  Potentiometer Digital Volume Control (0-60)
Bass Adjust 0/5.4dB 0/5dB ±10 dB
Treble Adjust N/A N/A ±10 dB
Balance Adjust 0.2 dB N/A 5 dB
GAIN Control

PO:  -2.5dB/3.2dB (AUX IN)

BAL: 3.4dB/9.1dB(AUX IN)

-7dB/4.5dB (AUX IN)
-3.5dB/8dB (USB IN)
 0/6/12 dB
Line Out Bypass Yes Yes YES
Audio Performance (DAC Section)
USB Sample Rate Support Up to 384kHz/32bit 32/44.1/48/96 kHz (16/24 bit) 32/44.1/48/96 kHz (16/32 bit)
DSD 2.8 MHz Supported
SPDIF Coaxial Sample Rate Support N/A N/A 32/44.1/48/96/192 kHz (16/24 bit)
THD+N <0.003%(1 kHz/10kΩ) <0.0045% (10 kΩ/1 kHz) (LO) <0.003% (1 kHz)
SNR ≥110 dB(A-weighted) ≥107dB(A-weighted) >105 dB(A-weighted)
Audio Performance
Output Power1 ≥112 mW(16Ω / THD+N<1%, AUX IN)  >190 mW (32 Ω/THD+N<1%) >200 mW (32 Ω/THD<1%)
Frequency Response 6 Hz~80kHz (-3dB) 20 Hz~20 kHz 20 Hz~20 kHz
SNR ≥115 dB (A-weighted, AUX IN) ≥110dB (AUX IN) >106 dB(AUX IN Gain 12 dB)
>113 dB(AUX IN Gain 0 dB/6dB)
Output impedance <1.2Ω <0.3 Ω <1.1 Ω
Crosstalk ≥79 dB (1 kHz,AUX IN)  ≥75dB (1 kHz) >75 dB (1 kHz)
THD+N <0.002% (1 kHz, AUX IN) <0.005% (32 Ω/1 kHz) <0.003% (1 kHz)
MAX Gain >3 dB / >12 dB
Peak Output Voltage >4.4 Vp-p 7.2 Vp-p >7.8 Vp-p
MAX. output Current 150mA (For reference) >75 mA >115 mA
MAX. input Level 3.4 Vrms 4.3 Vrms 4 Vrms
Power and Battery
Power/Charger DC5V 2A(recommended ) DC5V 1A(recommended ) Recommended DC5V 1A
Charing Display Yes YES YES
Battery Level display N/A N/A YES
Capacity 1800 mAh 1400 mAh 1500 mAh
Battery Life >20h(AUX IN)
>10h (USB IN)
>30 h >15 h
Charge Time ≤4 h ≤4 h ≤ 220 min

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